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Finding the Fourth Proportional to 125,150.80, 172,708.68 and 68,562

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Solution

The fourth proportional to 125,150.80, 172,708.68 and 68,562 is: 94,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,150.80 : 172,708.68 = 68,562 : x
  2. Step 2: Convert to fraction form
    125,150.80/172,708.68 = 68,562/x
  3. Step 3: Cross multiply
    125,150.80x = 172,708.68 × 68,562
  4. Step 4: Simplify right side
    125,150.80x = 11,841,252,518.16
  5. Step 5: Solve for x
    x = 11,841,252,518.16/125,150.80
  6. Step 6: Final answer
    x = 94,615.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.