Home / 102,983.52-142,132.41-62,720.85

Finding the Fourth Proportional to 102,983.52, 142,132.41 and 62,720.85

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Solution

The fourth proportional to 102,983.52, 142,132.41 and 62,720.85 is: 86,564.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,983.52 : 142,132.41 = 62,720.85 : x
  2. Step 2: Convert to fraction form
    102,983.52/142,132.41 = 62,720.85/x
  3. Step 3: Cross multiply
    102,983.52x = 142,132.41 × 62,720.85
  4. Step 4: Simplify right side
    102,983.52x = 8,914,665,567.75
  5. Step 5: Solve for x
    x = 8,914,665,567.75/102,983.52
  6. Step 6: Final answer
    x = 86,564.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.