Home / 119,008.87-178,513.91-40,123.78

Finding the Fourth Proportional to 119,008.87, 178,513.91 and 40,123.78

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Solution

The fourth proportional to 119,008.87, 178,513.91 and 40,123.78 is: 60,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,008.87 : 178,513.91 = 40,123.78 : x
  2. Step 2: Convert to fraction form
    119,008.87/178,513.91 = 40,123.78/x
  3. Step 3: Cross multiply
    119,008.87x = 178,513.91 × 40,123.78
  4. Step 4: Simplify right side
    119,008.87x = 7,162,652,355.34
  5. Step 5: Solve for x
    x = 7,162,652,355.34/119,008.87
  6. Step 6: Final answer
    x = 60,185.87

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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.