Home / 127,151.30-190,761.36-38,407.70

Finding the Fourth Proportional to 127,151.30, 190,761.36 and 38,407.70

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Solution

The fourth proportional to 127,151.30, 190,761.36 and 38,407.70 is: 57,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,151.30 : 190,761.36 = 38,407.70 : x
  2. Step 2: Convert to fraction form
    127,151.30/190,761.36 = 38,407.70/x
  3. Step 3: Cross multiply
    127,151.30x = 190,761.36 × 38,407.70
  4. Step 4: Simplify right side
    127,151.30x = 7,326,705,086.47
  5. Step 5: Solve for x
    x = 7,326,705,086.47/127,151.30
  6. Step 6: Final answer
    x = 57,621.94

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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.