Home / 127,633.32-176,139.78-71,048.28

Finding the Fourth Proportional to 127,633.32, 176,139.78 and 71,048.28

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Solution

The fourth proportional to 127,633.32, 176,139.78 and 71,048.28 is: 98,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,633.32 : 176,139.78 = 71,048.28 : x
  2. Step 2: Convert to fraction form
    127,633.32/176,139.78 = 71,048.28/x
  3. Step 3: Cross multiply
    127,633.32x = 176,139.78 × 71,048.28
  4. Step 4: Simplify right side
    127,633.32x = 12,514,428,408.58
  5. Step 5: Solve for x
    x = 12,514,428,408.58/127,633.32
  6. Step 6: Final answer
    x = 98,049.85

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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.