Home / 127,101.73-175,327.51-79,272.04

Finding the Fourth Proportional to 127,101.73, 175,327.51 and 79,272.04

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Solution

The fourth proportional to 127,101.73, 175,327.51 and 79,272.04 is: 109,349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,101.73 : 175,327.51 = 79,272.04 : x
  2. Step 2: Convert to fraction form
    127,101.73/175,327.51 = 79,272.04/x
  3. Step 3: Cross multiply
    127,101.73x = 175,327.51 × 79,272.04
  4. Step 4: Simplify right side
    127,101.73x = 13,898,569,385.82
  5. Step 5: Solve for x
    x = 13,898,569,385.82/127,101.73
  6. Step 6: Final answer
    x = 109,349.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.