Home / 119,159.28-178,738.76-30,412.78

Finding the Fourth Proportional to 119,159.28, 178,738.76 and 30,412.78

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Solution

The fourth proportional to 119,159.28, 178,738.76 and 30,412.78 is: 45,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,159.28 : 178,738.76 = 30,412.78 : x
  2. Step 2: Convert to fraction form
    119,159.28/178,738.76 = 30,412.78/x
  3. Step 3: Cross multiply
    119,159.28x = 178,738.76 × 30,412.78
  4. Step 4: Simplify right side
    119,159.28x = 5,435,942,585.35
  5. Step 5: Solve for x
    x = 5,435,942,585.35/119,159.28
  6. Step 6: Final answer
    x = 45,619.13

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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.