Home / 119,009.87-178,515.42-40,124.78

Finding the Fourth Proportional to 119,009.87, 178,515.42 and 40,124.78

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Solution

The fourth proportional to 119,009.87, 178,515.42 and 40,124.78 is: 60,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,009.87 : 178,515.42 = 40,124.78 : x
  2. Step 2: Convert to fraction form
    119,009.87/178,515.42 = 40,124.78/x
  3. Step 3: Cross multiply
    119,009.87x = 178,515.42 × 40,124.78
  4. Step 4: Simplify right side
    119,009.87x = 7,162,891,753.48
  5. Step 5: Solve for x
    x = 7,162,891,753.48/119,009.87
  6. Step 6: Final answer
    x = 60,187.38

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1.5x scale

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.