Home / 127,872.36-176,429.22-72,680.91

Finding the Fourth Proportional to 127,872.36, 176,429.22 and 72,680.91

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Solution

The fourth proportional to 127,872.36, 176,429.22 and 72,680.91 is: 100,279.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,872.36 : 176,429.22 = 72,680.91 : x
  2. Step 2: Convert to fraction form
    127,872.36/176,429.22 = 72,680.91/x
  3. Step 3: Cross multiply
    127,872.36x = 176,429.22 × 72,680.91
  4. Step 4: Simplify right side
    127,872.36x = 12,823,036,260.19
  5. Step 5: Solve for x
    x = 12,823,036,260.19/127,872.36
  6. Step 6: Final answer
    x = 100,279.97

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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.