Home / 127,742.72-176,282.66-71,152.88

Finding the Fourth Proportional to 127,742.72, 176,282.66 and 71,152.88

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Solution

The fourth proportional to 127,742.72, 176,282.66 and 71,152.88 is: 98,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,742.72 : 176,282.66 = 71,152.88 : x
  2. Step 2: Convert to fraction form
    127,742.72/176,282.66 = 71,152.88/x
  3. Step 3: Cross multiply
    127,742.72x = 176,282.66 × 71,152.88
  4. Step 4: Simplify right side
    127,742.72x = 12,543,018,249.53
  5. Step 5: Solve for x
    x = 12,543,018,249.53/127,742.72
  6. Step 6: Final answer
    x = 98,189.70

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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.