Home / 127,179.43-175,507.73-76,221.76

Finding the Fourth Proportional to 127,179.43, 175,507.73 and 76,221.76

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Solution

The fourth proportional to 127,179.43, 175,507.73 and 76,221.76 is: 105,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,179.43 : 175,507.73 = 76,221.76 : x
  2. Step 2: Convert to fraction form
    127,179.43/175,507.73 = 76,221.76/x
  3. Step 3: Cross multiply
    127,179.43x = 175,507.73 × 76,221.76
  4. Step 4: Simplify right side
    127,179.43x = 13,377,508,074.20
  5. Step 5: Solve for x
    x = 13,377,508,074.20/127,179.43
  6. Step 6: Final answer
    x = 105,186.10

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1.5x scale

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.