Home / 130,657.05-195,489.92-77,377.55

Finding the Fourth Proportional to 130,657.05, 195,489.92 and 77,377.55

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Solution

The fourth proportional to 130,657.05, 195,489.92 and 77,377.55 is: 115,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,657.05 : 195,489.92 = 77,377.55 : x
  2. Step 2: Convert to fraction form
    130,657.05/195,489.92 = 77,377.55/x
  3. Step 3: Cross multiply
    130,657.05x = 195,489.92 × 77,377.55
  4. Step 4: Simplify right side
    130,657.05x = 15,126,530,275.29
  5. Step 5: Solve for x
    x = 15,126,530,275.29/130,657.05
  6. Step 6: Final answer
    x = 115,772.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.