Home / 127,856.08-176,456.48-76,894.80

Finding the Fourth Proportional to 127,856.08, 176,456.48 and 76,894.80

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Solution

The fourth proportional to 127,856.08, 176,456.48 and 76,894.80 is: 106,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,856.08 : 176,456.48 = 76,894.80 : x
  2. Step 2: Convert to fraction form
    127,856.08/176,456.48 = 76,894.80/x
  3. Step 3: Cross multiply
    127,856.08x = 176,456.48 × 76,894.80
  4. Step 4: Simplify right side
    127,856.08x = 13,568,585,738.30
  5. Step 5: Solve for x
    x = 13,568,585,738.30/127,856.08
  6. Step 6: Final answer
    x = 106,123.90

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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.