Home / 130,480.62-180,060.18-76,769.10

Finding the Fourth Proportional to 130,480.62, 180,060.18 and 76,769.10

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Solution

The fourth proportional to 130,480.62, 180,060.18 and 76,769.10 is: 105,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,480.62 : 180,060.18 = 76,769.10 : x
  2. Step 2: Convert to fraction form
    130,480.62/180,060.18 = 76,769.10/x
  3. Step 3: Cross multiply
    130,480.62x = 180,060.18 × 76,769.10
  4. Step 4: Simplify right side
    130,480.62x = 13,823,057,964.44
  5. Step 5: Solve for x
    x = 13,823,057,964.44/130,480.62
  6. Step 6: Final answer
    x = 105,939.55

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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.