Home / 129,042.72-193,564.08-40,292.64

Finding the Fourth Proportional to 129,042.72, 193,564.08 and 40,292.64

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Solution

The fourth proportional to 129,042.72, 193,564.08 and 40,292.64 is: 60,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,042.72 : 193,564.08 = 40,292.64 : x
  2. Step 2: Convert to fraction form
    129,042.72/193,564.08 = 40,292.64/x
  3. Step 3: Cross multiply
    129,042.72x = 193,564.08 × 40,292.64
  4. Step 4: Simplify right side
    129,042.72x = 7,799,207,792.37
  5. Step 5: Solve for x
    x = 7,799,207,792.37/129,042.72
  6. Step 6: Final answer
    x = 60,438.96

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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.