Home / 198,101.60-297,152.40-131,325.20

Finding the Fourth Proportional to 198,101.60, 297,152.40 and 131,325.20

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Solution

The fourth proportional to 198,101.60, 297,152.40 and 131,325.20 is: 196,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,101.60 : 297,152.40 = 131,325.20 : x
  2. Step 2: Convert to fraction form
    198,101.60/297,152.40 = 131,325.20/x
  3. Step 3: Cross multiply
    198,101.60x = 297,152.40 × 131,325.20
  4. Step 4: Simplify right side
    198,101.60x = 39,023,598,360.48
  5. Step 5: Solve for x
    x = 39,023,598,360.48/198,101.60
  6. Step 6: Final answer
    x = 196,987.80

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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.