Home / 119,657.30-179,451.38-40,769.78

Finding the Fourth Proportional to 119,657.30, 179,451.38 and 40,769.78

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Solution

The fourth proportional to 119,657.30, 179,451.38 and 40,769.78 is: 61,142.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,657.30 : 179,451.38 = 40,769.78 : x
  2. Step 2: Convert to fraction form
    119,657.30/179,451.38 = 40,769.78/x
  3. Step 3: Cross multiply
    119,657.30x = 179,451.38 × 40,769.78
  4. Step 4: Simplify right side
    119,657.30x = 7,316,193,283.30
  5. Step 5: Solve for x
    x = 7,316,193,283.30/119,657.30
  6. Step 6: Final answer
    x = 61,142.89

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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.