Home / 137,287.31-189,454.52-76,027.70

Finding the Fourth Proportional to 137,287.31, 189,454.52 and 76,027.70

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Solution

The fourth proportional to 137,287.31, 189,454.52 and 76,027.70 is: 104,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,287.31 : 189,454.52 = 76,027.70 : x
  2. Step 2: Convert to fraction form
    137,287.31/189,454.52 = 76,027.70/x
  3. Step 3: Cross multiply
    137,287.31x = 189,454.52 × 76,027.70
  4. Step 4: Simplify right side
    137,287.31x = 14,403,790,082.79
  5. Step 5: Solve for x
    x = 14,403,790,082.79/137,287.31
  6. Step 6: Final answer
    x = 104,917.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.