Home / 129,207.45-193,811.18-40,467.90

Finding the Fourth Proportional to 129,207.45, 193,811.18 and 40,467.90

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Solution

The fourth proportional to 129,207.45, 193,811.18 and 40,467.90 is: 60,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,207.45 : 193,811.18 = 40,467.90 : x
  2. Step 2: Convert to fraction form
    129,207.45/193,811.18 = 40,467.90/x
  3. Step 3: Cross multiply
    129,207.45x = 193,811.18 × 40,467.90
  4. Step 4: Simplify right side
    129,207.45x = 7,843,132,203.21
  5. Step 5: Solve for x
    x = 7,843,132,203.21/129,207.45
  6. Step 6: Final answer
    x = 60,701.86

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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.