Home / 130,525.20-195,787.80-80,442.90

Finding the Fourth Proportional to 130,525.20, 195,787.80 and 80,442.90

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Solution

The fourth proportional to 130,525.20, 195,787.80 and 80,442.90 is: 120,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,525.20 : 195,787.80 = 80,442.90 : x
  2. Step 2: Convert to fraction form
    130,525.20/195,787.80 = 80,442.90/x
  3. Step 3: Cross multiply
    130,525.20x = 195,787.80 × 80,442.90
  4. Step 4: Simplify right side
    130,525.20x = 15,749,738,416.62
  5. Step 5: Solve for x
    x = 15,749,738,416.62/130,525.20
  6. Step 6: Final answer
    x = 120,664.35

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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.