Home / 85,127.22-127,690.56-85,004.10

Finding the Fourth Proportional to 85,127.22, 127,690.56 and 85,004.10

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Solution

The fourth proportional to 85,127.22, 127,690.56 and 85,004.10 is: 127,505.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,127.22 : 127,690.56 = 85,004.10 : x
  2. Step 2: Convert to fraction form
    85,127.22/127,690.56 = 85,004.10/x
  3. Step 3: Cross multiply
    85,127.22x = 127,690.56 × 85,004.10
  4. Step 4: Simplify right side
    85,127.22x = 10,854,221,131.30
  5. Step 5: Solve for x
    x = 10,854,221,131.30/85,127.22
  6. Step 6: Final answer
    x = 127,505.88

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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.