Home / 127,042.88-190,564.56-38,321.78

Finding the Fourth Proportional to 127,042.88, 190,564.56 and 38,321.78

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Solution

The fourth proportional to 127,042.88, 190,564.56 and 38,321.78 is: 57,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,042.88 : 190,564.56 = 38,321.78 : x
  2. Step 2: Convert to fraction form
    127,042.88/190,564.56 = 38,321.78/x
  3. Step 3: Cross multiply
    127,042.88x = 190,564.56 × 38,321.78
  4. Step 4: Simplify right side
    127,042.88x = 7,302,773,144.12
  5. Step 5: Solve for x
    x = 7,302,773,144.12/127,042.88
  6. Step 6: Final answer
    x = 57,482.74

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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.