Home / 146,830.20-220,245.30-136,915.80

Finding the Fourth Proportional to 146,830.20, 220,245.30 and 136,915.80

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Solution

The fourth proportional to 146,830.20, 220,245.30 and 136,915.80 is: 205,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,830.20 : 220,245.30 = 136,915.80 : x
  2. Step 2: Convert to fraction form
    146,830.20/220,245.30 = 136,915.80/x
  3. Step 3: Cross multiply
    146,830.20x = 220,245.30 × 136,915.80
  4. Step 4: Simplify right side
    146,830.20x = 30,155,061,445.74
  5. Step 5: Solve for x
    x = 30,155,061,445.74/146,830.20
  6. Step 6: Final answer
    x = 205,373.70

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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.