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Finding the Fourth Proportional to 129,656.88, 194,468.04 and 36,172.08

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Solution

The fourth proportional to 129,656.88, 194,468.04 and 36,172.08 is: 54,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,656.88 : 194,468.04 = 36,172.08 : x
  2. Step 2: Convert to fraction form
    129,656.88/194,468.04 = 36,172.08/x
  3. Step 3: Cross multiply
    129,656.88x = 194,468.04 × 36,172.08
  4. Step 4: Simplify right side
    129,656.88x = 7,034,313,500.32
  5. Step 5: Solve for x
    x = 7,034,313,500.32/129,656.88
  6. Step 6: Final answer
    x = 54,253.30

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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.