Home / 140,987.52-194,562.83-76,456.74

Finding the Fourth Proportional to 140,987.52, 194,562.83 and 76,456.74

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Solution

The fourth proportional to 140,987.52, 194,562.83 and 76,456.74 is: 105,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,987.52 : 194,562.83 = 76,456.74 : x
  2. Step 2: Convert to fraction form
    140,987.52/194,562.83 = 76,456.74/x
  3. Step 3: Cross multiply
    140,987.52x = 194,562.83 × 76,456.74
  4. Step 4: Simplify right side
    140,987.52x = 14,875,639,706.97
  5. Step 5: Solve for x
    x = 14,875,639,706.97/140,987.52
  6. Step 6: Final answer
    x = 105,510.33

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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.