Home / 124,998.08-172,318.04-89,125.88

Finding the Fourth Proportional to 124,998.08, 172,318.04 and 89,125.88

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Solution

The fourth proportional to 124,998.08, 172,318.04 and 89,125.88 is: 122,865.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,998.08 : 172,318.04 = 89,125.88 : x
  2. Step 2: Convert to fraction form
    124,998.08/172,318.04 = 89,125.88/x
  3. Step 3: Cross multiply
    124,998.08x = 172,318.04 × 89,125.88
  4. Step 4: Simplify right side
    124,998.08x = 15,357,996,954.88
  5. Step 5: Solve for x
    x = 15,357,996,954.88/124,998.08
  6. Step 6: Final answer
    x = 122,865.86

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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.