Home / 119,126.52-178,685.40-30,379.20

Finding the Fourth Proportional to 119,126.52, 178,685.40 and 30,379.20

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Solution

The fourth proportional to 119,126.52, 178,685.40 and 30,379.20 is: 45,567.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,126.52 : 178,685.40 = 30,379.20 : x
  2. Step 2: Convert to fraction form
    119,126.52/178,685.40 = 30,379.20/x
  3. Step 3: Cross multiply
    119,126.52x = 178,685.40 × 30,379.20
  4. Step 4: Simplify right side
    119,126.52x = 5,428,319,503.68
  5. Step 5: Solve for x
    x = 5,428,319,503.68/119,126.52
  6. Step 6: Final answer
    x = 45,567.68

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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.