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Finding the Fourth Proportional to 118,211.68, 163,132.06 and 75,770.18

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Solution

The fourth proportional to 118,211.68, 163,132.06 and 75,770.18 is: 104,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,211.68 : 163,132.06 = 75,770.18 : x
  2. Step 2: Convert to fraction form
    118,211.68/163,132.06 = 75,770.18/x
  3. Step 3: Cross multiply
    118,211.68x = 163,132.06 × 75,770.18
  4. Step 4: Simplify right side
    118,211.68x = 12,360,545,549.97
  5. Step 5: Solve for x
    x = 12,360,545,549.97/118,211.68
  6. Step 6: Final answer
    x = 104,562.81

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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.