Home / 129,618.90-194,428.35-36,124.65

Finding the Fourth Proportional to 129,618.90, 194,428.35 and 36,124.65

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Solution

The fourth proportional to 129,618.90, 194,428.35 and 36,124.65 is: 54,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,618.90 : 194,428.35 = 36,124.65 : x
  2. Step 2: Convert to fraction form
    129,618.90/194,428.35 = 36,124.65/x
  3. Step 3: Cross multiply
    129,618.90x = 194,428.35 × 36,124.65
  4. Step 4: Simplify right side
    129,618.90x = 7,023,656,093.83
  5. Step 5: Solve for x
    x = 7,023,656,093.83/129,618.90
  6. Step 6: Final answer
    x = 54,186.98

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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.