Home / 125,228.31-172,832.79-77,497.04

Finding the Fourth Proportional to 125,228.31, 172,832.79 and 77,497.04

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Solution

The fourth proportional to 125,228.31, 172,832.79 and 77,497.04 is: 106,956.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,228.31 : 172,832.79 = 77,497.04 : x
  2. Step 2: Convert to fraction form
    125,228.31/172,832.79 = 77,497.04/x
  3. Step 3: Cross multiply
    125,228.31x = 172,832.79 × 77,497.04
  4. Step 4: Simplify right side
    125,228.31x = 13,394,028,775.78
  5. Step 5: Solve for x
    x = 13,394,028,775.78/125,228.31
  6. Step 6: Final answer
    x = 106,956.88

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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.