Home / 143,792.10-215,720.55-84,597.30

Finding the Fourth Proportional to 143,792.10, 215,720.55 and 84,597.30

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Solution

The fourth proportional to 143,792.10, 215,720.55 and 84,597.30 is: 126,915.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,792.10 : 215,720.55 = 84,597.30 : x
  2. Step 2: Convert to fraction form
    143,792.10/215,720.55 = 84,597.30/x
  3. Step 3: Cross multiply
    143,792.10x = 215,720.55 × 84,597.30
  4. Step 4: Simplify right side
    143,792.10x = 18,249,376,084.52
  5. Step 5: Solve for x
    x = 18,249,376,084.52/143,792.10
  6. Step 6: Final answer
    x = 126,915.01

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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.