Home / 127,380.59-191,071.34-38,634.86

Finding the Fourth Proportional to 127,380.59, 191,071.34 and 38,634.86

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Solution

The fourth proportional to 127,380.59, 191,071.34 and 38,634.86 is: 57,952.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,380.59 : 191,071.34 = 38,634.86 : x
  2. Step 2: Convert to fraction form
    127,380.59/191,071.34 = 38,634.86/x
  3. Step 3: Cross multiply
    127,380.59x = 191,071.34 × 38,634.86
  4. Step 4: Simplify right side
    127,380.59x = 7,382,013,322.38
  5. Step 5: Solve for x
    x = 7,382,013,322.38/127,380.59
  6. Step 6: Final answer
    x = 57,952.42

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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.