Home / 127,977.48-191,689.18-83,469.21

Finding the Fourth Proportional to 127,977.48, 191,689.18 and 83,469.21

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Solution

The fourth proportional to 127,977.48, 191,689.18 and 83,469.21 is: 125,023.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,977.48 : 191,689.18 = 83,469.21 : x
  2. Step 2: Convert to fraction form
    127,977.48/191,689.18 = 83,469.21/x
  3. Step 3: Cross multiply
    127,977.48x = 191,689.18 × 83,469.21
  4. Step 4: Simplify right side
    127,977.48x = 16,000,143,253.03
  5. Step 5: Solve for x
    x = 16,000,143,253.03/127,977.48
  6. Step 6: Final answer
    x = 125,023.12

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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.