Home / 121,546.64-182,318.49-31,581.39

Finding the Fourth Proportional to 121,546.64, 182,318.49 and 31,581.39

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Solution

The fourth proportional to 121,546.64, 182,318.49 and 31,581.39 is: 47,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,546.64 : 182,318.49 = 31,581.39 : x
  2. Step 2: Convert to fraction form
    121,546.64/182,318.49 = 31,581.39/x
  3. Step 3: Cross multiply
    121,546.64x = 182,318.49 × 31,581.39
  4. Step 4: Simplify right side
    121,546.64x = 5,757,870,267.40
  5. Step 5: Solve for x
    x = 5,757,870,267.40/121,546.64
  6. Step 6: Final answer
    x = 47,371.70

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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.