Home / 119,769.91-179,564.65-72,374.92

Finding the Fourth Proportional to 119,769.91, 179,564.65 and 72,374.92

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Solution

The fourth proportional to 119,769.91, 179,564.65 and 72,374.92 is: 108,507.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,769.91 : 179,564.65 = 72,374.92 : x
  2. Step 2: Convert to fraction form
    119,769.91/179,564.65 = 72,374.92/x
  3. Step 3: Cross multiply
    119,769.91x = 179,564.65 × 72,374.92
  4. Step 4: Simplify right side
    119,769.91x = 12,995,976,548.73
  5. Step 5: Solve for x
    x = 12,995,976,548.73/119,769.91
  6. Step 6: Final answer
    x = 108,507.86

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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.