Home / 127,448.13-191,159.83-38,702.40

Finding the Fourth Proportional to 127,448.13, 191,159.83 and 38,702.40

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Solution

The fourth proportional to 127,448.13, 191,159.83 and 38,702.40 is: 58,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,448.13 : 191,159.83 = 38,702.40 : x
  2. Step 2: Convert to fraction form
    127,448.13/191,159.83 = 38,702.40/x
  3. Step 3: Cross multiply
    127,448.13x = 191,159.83 × 38,702.40
  4. Step 4: Simplify right side
    127,448.13x = 7,398,344,204.59
  5. Step 5: Solve for x
    x = 7,398,344,204.59/127,448.13
  6. Step 6: Final answer
    x = 58,049.85

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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.