Home / 260,102.73-390,154.10-73,114.23

Finding the Fourth Proportional to 260,102.73, 390,154.10 and 73,114.23

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Solution

The fourth proportional to 260,102.73, 390,154.10 and 73,114.23 is: 109,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,102.73 : 390,154.10 = 73,114.23 : x
  2. Step 2: Convert to fraction form
    260,102.73/390,154.10 = 73,114.23/x
  3. Step 3: Cross multiply
    260,102.73x = 390,154.10 × 73,114.23
  4. Step 4: Simplify right side
    260,102.73x = 28,525,816,237.27
  5. Step 5: Solve for x
    x = 28,525,816,237.27/260,102.73
  6. Step 6: Final answer
    x = 109,671.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.