Home / 124,993.29-172,489.53-67,631.36

Finding the Fourth Proportional to 124,993.29, 172,489.53 and 67,631.36

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Solution

The fourth proportional to 124,993.29, 172,489.53 and 67,631.36 is: 93,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,993.29 : 172,489.53 = 67,631.36 : x
  2. Step 2: Convert to fraction form
    124,993.29/172,489.53 = 67,631.36/x
  3. Step 3: Cross multiply
    124,993.29x = 172,489.53 × 67,631.36
  4. Step 4: Simplify right side
    124,993.29x = 11,665,700,890.83
  5. Step 5: Solve for x
    x = 11,665,700,890.83/124,993.29
  6. Step 6: Final answer
    x = 93,330.61

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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.