Home / 127,742.82-176,290.53-71,154.22

Finding the Fourth Proportional to 127,742.82, 176,290.53 and 71,154.22

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Solution

The fourth proportional to 127,742.82, 176,290.53 and 71,154.22 is: 98,195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,742.82 : 176,290.53 = 71,154.22 : x
  2. Step 2: Convert to fraction form
    127,742.82/176,290.53 = 71,154.22/x
  3. Step 3: Cross multiply
    127,742.82x = 176,290.53 × 71,154.22
  4. Step 4: Simplify right side
    127,742.82x = 12,543,815,155.54
  5. Step 5: Solve for x
    x = 12,543,815,155.54/127,742.82
  6. Step 6: Final answer
    x = 98,195.85

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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.