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Finding the Fourth Proportional to 88,841.80, 133,068.30 and 77,177.80

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Solution

The fourth proportional to 88,841.80, 133,068.30 and 77,177.80 is: 115,597.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,841.80 : 133,068.30 = 77,177.80 : x
  2. Step 2: Convert to fraction form
    88,841.80/133,068.30 = 77,177.80/x
  3. Step 3: Cross multiply
    88,841.80x = 133,068.30 × 77,177.80
  4. Step 4: Simplify right side
    88,841.80x = 10,269,918,643.74
  5. Step 5: Solve for x
    x = 10,269,918,643.74/88,841.80
  6. Step 6: Final answer
    x = 115,597.82

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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.