Home / 431,895.06-647,967.09-132,419.82

Finding the Fourth Proportional to 431,895.06, 647,967.09 and 132,419.82

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Solution

The fourth proportional to 431,895.06, 647,967.09 and 132,419.82 is: 198,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,895.06 : 647,967.09 = 132,419.82 : x
  2. Step 2: Convert to fraction form
    431,895.06/647,967.09 = 132,419.82/x
  3. Step 3: Cross multiply
    431,895.06x = 647,967.09 × 132,419.82
  4. Step 4: Simplify right side
    431,895.06x = 85,803,685,423.72
  5. Step 5: Solve for x
    x = 85,803,685,423.72/431,895.06
  6. Step 6: Final answer
    x = 198,667.90

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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.