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Finding the Fourth Proportional to 176,413.80, 243,438.42 and 99,910.92

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Solution

The fourth proportional to 176,413.80, 243,438.42 and 99,910.92 is: 137,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,413.80 : 243,438.42 = 99,910.92 : x
  2. Step 2: Convert to fraction form
    176,413.80/243,438.42 = 99,910.92/x
  3. Step 3: Cross multiply
    176,413.80x = 243,438.42 × 99,910.92
  4. Step 4: Simplify right side
    176,413.80x = 24,322,156,505.55
  5. Step 5: Solve for x
    x = 24,322,156,505.55/176,413.80
  6. Step 6: Final answer
    x = 137,869.92

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1.5x scale

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.