Home / 125,037.28-172,551.45-68,448.66

Finding the Fourth Proportional to 125,037.28, 172,551.45 and 68,448.66

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Solution

The fourth proportional to 125,037.28, 172,551.45 and 68,448.66 is: 94,459.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,037.28 : 172,551.45 = 68,448.66 : x
  2. Step 2: Convert to fraction form
    125,037.28/172,551.45 = 68,448.66/x
  3. Step 3: Cross multiply
    125,037.28x = 172,551.45 × 68,448.66
  4. Step 4: Simplify right side
    125,037.28x = 11,810,915,143.17
  5. Step 5: Solve for x
    x = 11,810,915,143.17/125,037.28
  6. Step 6: Final answer
    x = 94,459.15

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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.