Home / 231,237.32-319,144.02-140,621.72

Finding the Fourth Proportional to 231,237.32, 319,144.02 and 140,621.72

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Solution

The fourth proportional to 231,237.32, 319,144.02 and 140,621.72 is: 194,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,237.32 : 319,144.02 = 140,621.72 : x
  2. Step 2: Convert to fraction form
    231,237.32/319,144.02 = 140,621.72/x
  3. Step 3: Cross multiply
    231,237.32x = 319,144.02 × 140,621.72
  4. Step 4: Simplify right side
    231,237.32x = 44,878,581,020.11
  5. Step 5: Solve for x
    x = 44,878,581,020.11/231,237.32
  6. Step 6: Final answer
    x = 194,080.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.