Home / 127,418.28-191,128.55-38,671.77

Finding the Fourth Proportional to 127,418.28, 191,128.55 and 38,671.77

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Solution

The fourth proportional to 127,418.28, 191,128.55 and 38,671.77 is: 58,008.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,418.28 : 191,128.55 = 38,671.77 : x
  2. Step 2: Convert to fraction form
    127,418.28/191,128.55 = 38,671.77/x
  3. Step 3: Cross multiply
    127,418.28x = 191,128.55 × 38,671.77
  4. Step 4: Simplify right side
    127,418.28x = 7,391,279,132.67
  5. Step 5: Solve for x
    x = 7,391,279,132.67/127,418.28
  6. Step 6: Final answer
    x = 58,008.00

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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.