Home / 140,872.91-194,405.18-76,342.29

Finding the Fourth Proportional to 140,872.91, 194,405.18 and 76,342.29

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Solution

The fourth proportional to 140,872.91, 194,405.18 and 76,342.29 is: 105,352.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,872.91 : 194,405.18 = 76,342.29 : x
  2. Step 2: Convert to fraction form
    140,872.91/194,405.18 = 76,342.29/x
  3. Step 3: Cross multiply
    140,872.91x = 194,405.18 × 76,342.29
  4. Step 4: Simplify right side
    140,872.91x = 14,841,335,275.32
  5. Step 5: Solve for x
    x = 14,841,335,275.32/140,872.91
  6. Step 6: Final answer
    x = 105,352.66

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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.