Home / 130,228.16-179,613.45-87,193.97

Finding the Fourth Proportional to 130,228.16, 179,613.45 and 87,193.97

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Solution

The fourth proportional to 130,228.16, 179,613.45 and 87,193.97 is: 120,259.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,228.16 : 179,613.45 = 87,193.97 : x
  2. Step 2: Convert to fraction form
    130,228.16/179,613.45 = 87,193.97/x
  3. Step 3: Cross multiply
    130,228.16x = 179,613.45 × 87,193.97
  4. Step 4: Simplify right side
    130,228.16x = 15,661,209,546.38
  5. Step 5: Solve for x
    x = 15,661,209,546.38/130,228.16
  6. Step 6: Final answer
    x = 120,259.78

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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.