Home / 127,998.17-191,982.25-80,472.95

Finding the Fourth Proportional to 127,998.17, 191,982.25 and 80,472.95

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Solution

The fourth proportional to 127,998.17, 191,982.25 and 80,472.95 is: 120,699.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,998.17 : 191,982.25 = 80,472.95 : x
  2. Step 2: Convert to fraction form
    127,998.17/191,982.25 = 80,472.95/x
  3. Step 3: Cross multiply
    127,998.17x = 191,982.25 × 80,472.95
  4. Step 4: Simplify right side
    127,998.17x = 15,449,378,005.14
  5. Step 5: Solve for x
    x = 15,449,378,005.14/127,998.17
  6. Step 6: Final answer
    x = 120,699.99

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1.5x scale

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.