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Finding the Fourth Proportional to 88,549.80, 132,630.30 and 76,885.80

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Solution

The fourth proportional to 88,549.80, 132,630.30 and 76,885.80 is: 115,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,549.80 : 132,630.30 = 76,885.80 : x
  2. Step 2: Convert to fraction form
    88,549.80/132,630.30 = 76,885.80/x
  3. Step 3: Cross multiply
    88,549.80x = 132,630.30 × 76,885.80
  4. Step 4: Simplify right side
    88,549.80x = 10,197,386,719.74
  5. Step 5: Solve for x
    x = 10,197,386,719.74/88,549.80
  6. Step 6: Final answer
    x = 115,159.91

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1.5x scale

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.