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Finding the Fourth Proportional to 88,829.30, 133,049.55 and 77,165.30

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Solution

The fourth proportional to 88,829.30, 133,049.55 and 77,165.30 is: 115,579.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,829.30 : 133,049.55 = 77,165.30 : x
  2. Step 2: Convert to fraction form
    88,829.30/133,049.55 = 77,165.30/x
  3. Step 3: Cross multiply
    88,829.30x = 133,049.55 × 77,165.30
  4. Step 4: Simplify right side
    88,829.30x = 10,266,808,440.62
  5. Step 5: Solve for x
    x = 10,266,808,440.62/88,829.30
  6. Step 6: Final answer
    x = 115,579.08

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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.