Home / 129,118.80-193,689.36-35,624.55

Finding the Fourth Proportional to 129,118.80, 193,689.36 and 35,624.55

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Solution

The fourth proportional to 129,118.80, 193,689.36 and 35,624.55 is: 53,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,118.80 : 193,689.36 = 35,624.55 : x
  2. Step 2: Convert to fraction form
    129,118.80/193,689.36 = 35,624.55/x
  3. Step 3: Cross multiply
    129,118.80x = 193,689.36 × 35,624.55
  4. Step 4: Simplify right side
    129,118.80x = 6,900,096,289.79
  5. Step 5: Solve for x
    x = 6,900,096,289.79/129,118.80
  6. Step 6: Final answer
    x = 53,439.90

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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.