Home / 231,909.08-347,746.07-82,128.29

Finding the Fourth Proportional to 231,909.08, 347,746.07 and 82,128.29

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Solution

The fourth proportional to 231,909.08, 347,746.07 and 82,128.29 is: 123,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,909.08 : 347,746.07 = 82,128.29 : x
  2. Step 2: Convert to fraction form
    231,909.08/347,746.07 = 82,128.29/x
  3. Step 3: Cross multiply
    231,909.08x = 347,746.07 × 82,128.29
  4. Step 4: Simplify right side
    231,909.08x = 28,559,788,549.91
  5. Step 5: Solve for x
    x = 28,559,788,549.91/231,909.08
  6. Step 6: Final answer
    x = 123,150.80

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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.