Home / 131,799.60-197,699.40-100,306.80

Finding the Fourth Proportional to 131,799.60, 197,699.40 and 100,306.80

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Solution

The fourth proportional to 131,799.60, 197,699.40 and 100,306.80 is: 150,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,799.60 : 197,699.40 = 100,306.80 : x
  2. Step 2: Convert to fraction form
    131,799.60/197,699.40 = 100,306.80/x
  3. Step 3: Cross multiply
    131,799.60x = 197,699.40 × 100,306.80
  4. Step 4: Simplify right side
    131,799.60x = 19,830,594,175.92
  5. Step 5: Solve for x
    x = 19,830,594,175.92/131,799.60
  6. Step 6: Final answer
    x = 150,460.20

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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.