Home / 260,072.76-390,109.12-73,084.26

Finding the Fourth Proportional to 260,072.76, 390,109.12 and 73,084.26

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Solution

The fourth proportional to 260,072.76, 390,109.12 and 73,084.26 is: 109,626.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,072.76 : 390,109.12 = 73,084.26 : x
  2. Step 2: Convert to fraction form
    260,072.76/390,109.12 = 73,084.26/x
  3. Step 3: Cross multiply
    260,072.76x = 390,109.12 × 73,084.26
  4. Step 4: Simplify right side
    260,072.76x = 28,510,836,354.45
  5. Step 5: Solve for x
    x = 28,510,836,354.45/260,072.76
  6. Step 6: Final answer
    x = 109,626.38

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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.