Home / 130,042.20-195,063.30-80,890.20

Finding the Fourth Proportional to 130,042.20, 195,063.30 and 80,890.20

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Solution

The fourth proportional to 130,042.20, 195,063.30 and 80,890.20 is: 121,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,042.20 : 195,063.30 = 80,890.20 : x
  2. Step 2: Convert to fraction form
    130,042.20/195,063.30 = 80,890.20/x
  3. Step 3: Cross multiply
    130,042.20x = 195,063.30 × 80,890.20
  4. Step 4: Simplify right side
    130,042.20x = 15,778,709,349.66
  5. Step 5: Solve for x
    x = 15,778,709,349.66/130,042.20
  6. Step 6: Final answer
    x = 121,335.30

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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.