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Finding the Fourth Proportional to 123,503.60, 170,435.13 and 66,914.93

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Solution

The fourth proportional to 123,503.60, 170,435.13 and 66,914.93 is: 92,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,503.60 : 170,435.13 = 66,914.93 : x
  2. Step 2: Convert to fraction form
    123,503.60/170,435.13 = 66,914.93/x
  3. Step 3: Cross multiply
    123,503.60x = 170,435.13 × 66,914.93
  4. Step 4: Simplify right side
    123,503.60x = 11,404,654,793.49
  5. Step 5: Solve for x
    x = 11,404,654,793.49/123,503.60
  6. Step 6: Final answer
    x = 92,342.69

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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.