Home / 129,636.52-194,455.66-36,143.08

Finding the Fourth Proportional to 129,636.52, 194,455.66 and 36,143.08

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Solution

The fourth proportional to 129,636.52, 194,455.66 and 36,143.08 is: 54,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,636.52 : 194,455.66 = 36,143.08 : x
  2. Step 2: Convert to fraction form
    129,636.52/194,455.66 = 36,143.08/x
  3. Step 3: Cross multiply
    129,636.52x = 194,455.66 × 36,143.08
  4. Step 4: Simplify right side
    129,636.52x = 7,028,226,475.83
  5. Step 5: Solve for x
    x = 7,028,226,475.83/129,636.52
  6. Step 6: Final answer
    x = 54,214.87

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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.