Home / 231,491.16-347,148.45-81,703.53

Finding the Fourth Proportional to 231,491.16, 347,148.45 and 81,703.53

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Solution

The fourth proportional to 231,491.16, 347,148.45 and 81,703.53 is: 122,524.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,491.16 : 347,148.45 = 81,703.53 : x
  2. Step 2: Convert to fraction form
    231,491.16/347,148.45 = 81,703.53/x
  3. Step 3: Cross multiply
    231,491.16x = 347,148.45 × 81,703.53
  4. Step 4: Simplify right side
    231,491.16x = 28,363,253,799.03
  5. Step 5: Solve for x
    x = 28,363,253,799.03/231,491.16
  6. Step 6: Final answer
    x = 122,524.13

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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.