Home / 124,378.80-171,645.24-67,790.17

Finding the Fourth Proportional to 124,378.80, 171,645.24 and 67,790.17

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Solution

The fourth proportional to 124,378.80, 171,645.24 and 67,790.17 is: 93,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,378.80 : 171,645.24 = 67,790.17 : x
  2. Step 2: Convert to fraction form
    124,378.80/171,645.24 = 67,790.17/x
  3. Step 3: Cross multiply
    124,378.80x = 171,645.24 × 67,790.17
  4. Step 4: Simplify right side
    124,378.80x = 11,635,859,999.29
  5. Step 5: Solve for x
    x = 11,635,859,999.29/124,378.80
  6. Step 6: Final answer
    x = 93,551.79

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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.