Home / 126,905.72-175,148.28-73,180.04

Finding the Fourth Proportional to 126,905.72, 175,148.28 and 73,180.04

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Solution

The fourth proportional to 126,905.72, 175,148.28 and 73,180.04 is: 100,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,905.72 : 175,148.28 = 73,180.04 : x
  2. Step 2: Convert to fraction form
    126,905.72/175,148.28 = 73,180.04/x
  3. Step 3: Cross multiply
    126,905.72x = 175,148.28 × 73,180.04
  4. Step 4: Simplify right side
    126,905.72x = 12,817,357,260.59
  5. Step 5: Solve for x
    x = 12,817,357,260.59/126,905.72
  6. Step 6: Final answer
    x = 100,999.05

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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.