Home / 260,102.87-390,154.29-73,114.37

Finding the Fourth Proportional to 260,102.87, 390,154.29 and 73,114.37

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Solution

The fourth proportional to 260,102.87, 390,154.29 and 73,114.37 is: 109,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,102.87 : 390,154.29 = 73,114.37 : x
  2. Step 2: Convert to fraction form
    260,102.87/390,154.29 = 73,114.37/x
  3. Step 3: Cross multiply
    260,102.87x = 390,154.29 × 73,114.37
  4. Step 4: Simplify right side
    260,102.87x = 28,525,883,165.38
  5. Step 5: Solve for x
    x = 28,525,883,165.38/260,102.87
  6. Step 6: Final answer
    x = 109,671.55

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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.