Home / 140,122.80-210,184.20-129,297.15

Finding the Fourth Proportional to 140,122.80, 210,184.20 and 129,297.15

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Solution

The fourth proportional to 140,122.80, 210,184.20 and 129,297.15 is: 193,945.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,122.80 : 210,184.20 = 129,297.15 : x
  2. Step 2: Convert to fraction form
    140,122.80/210,184.20 = 129,297.15/x
  3. Step 3: Cross multiply
    140,122.80x = 210,184.20 × 129,297.15
  4. Step 4: Simplify right side
    140,122.80x = 27,176,218,035.03
  5. Step 5: Solve for x
    x = 27,176,218,035.03/140,122.80
  6. Step 6: Final answer
    x = 193,945.73

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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.