Home / 140,287.10-193,594.92-76,624.88

Finding the Fourth Proportional to 140,287.10, 193,594.92 and 76,624.88

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Solution

The fourth proportional to 140,287.10, 193,594.92 and 76,624.88 is: 105,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,287.10 : 193,594.92 = 76,624.88 : x
  2. Step 2: Convert to fraction form
    140,287.10/193,594.92 = 76,624.88/x
  3. Step 3: Cross multiply
    140,287.10x = 193,594.92 × 76,624.88
  4. Step 4: Simplify right side
    140,287.10x = 14,834,187,513.61
  5. Step 5: Solve for x
    x = 14,834,187,513.61/140,287.10
  6. Step 6: Final answer
    x = 105,741.64

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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.