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Finding the Fourth Proportional to 129,750.32, 194,246.16 and 117,298.88

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Solution

The fourth proportional to 129,750.32, 194,246.16 and 117,298.88 is: 175,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,750.32 : 194,246.16 = 117,298.88 : x
  2. Step 2: Convert to fraction form
    129,750.32/194,246.16 = 117,298.88/x
  3. Step 3: Cross multiply
    129,750.32x = 194,246.16 × 117,298.88
  4. Step 4: Simplify right side
    129,750.32x = 22,784,857,012.30
  5. Step 5: Solve for x
    x = 22,784,857,012.30/129,750.32
  6. Step 6: Final answer
    x = 175,605.40

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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.