Home / 130,120.40-195,046.20-70,830.80

Finding the Fourth Proportional to 130,120.40, 195,046.20 and 70,830.80

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Solution

The fourth proportional to 130,120.40, 195,046.20 and 70,830.80 is: 106,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,120.40 : 195,046.20 = 70,830.80 : x
  2. Step 2: Convert to fraction form
    130,120.40/195,046.20 = 70,830.80/x
  3. Step 3: Cross multiply
    130,120.40x = 195,046.20 × 70,830.80
  4. Step 4: Simplify right side
    130,120.40x = 13,815,278,382.96
  5. Step 5: Solve for x
    x = 13,815,278,382.96/130,120.40
  6. Step 6: Final answer
    x = 106,173.04

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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.