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Finding the Fourth Proportional to 88,719.90, 133,079.85 and 82,304.70

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Solution

The fourth proportional to 88,719.90, 133,079.85 and 82,304.70 is: 123,457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,719.90 : 133,079.85 = 82,304.70 : x
  2. Step 2: Convert to fraction form
    88,719.90/133,079.85 = 82,304.70/x
  3. Step 3: Cross multiply
    88,719.90x = 133,079.85 × 82,304.70
  4. Step 4: Simplify right side
    88,719.90x = 10,953,097,130.30
  5. Step 5: Solve for x
    x = 10,953,097,130.30/88,719.90
  6. Step 6: Final answer
    x = 123,457.05

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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.