Home / 85,321.13-127,882.03-64,193.28

Finding the Fourth Proportional to 85,321.13, 127,882.03 and 64,193.28

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Solution

The fourth proportional to 85,321.13, 127,882.03 and 64,193.28 is: 96,214.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,321.13 : 127,882.03 = 64,193.28 : x
  2. Step 2: Convert to fraction form
    85,321.13/127,882.03 = 64,193.28/x
  3. Step 3: Cross multiply
    85,321.13x = 127,882.03 × 64,193.28
  4. Step 4: Simplify right side
    85,321.13x = 8,209,167,158.42
  5. Step 5: Solve for x
    x = 8,209,167,158.42/85,321.13
  6. Step 6: Final answer
    x = 96,214.94

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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.