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Finding the Fourth Proportional to 88,892.80, 133,436.40 and 69,258.40

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Solution

The fourth proportional to 88,892.80, 133,436.40 and 69,258.40 is: 103,963.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,892.80 : 133,436.40 = 69,258.40 : x
  2. Step 2: Convert to fraction form
    88,892.80/133,436.40 = 69,258.40/x
  3. Step 3: Cross multiply
    88,892.80x = 133,436.40 × 69,258.40
  4. Step 4: Simplify right side
    88,892.80x = 9,241,591,565.76
  5. Step 5: Solve for x
    x = 9,241,591,565.76/88,892.80
  6. Step 6: Final answer
    x = 103,963.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.