Home / 154,126.80-231,190.20-75,200.40

Finding the Fourth Proportional to 154,126.80, 231,190.20 and 75,200.40

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Solution

The fourth proportional to 154,126.80, 231,190.20 and 75,200.40 is: 112,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,126.80 : 231,190.20 = 75,200.40 : x
  2. Step 2: Convert to fraction form
    154,126.80/231,190.20 = 75,200.40/x
  3. Step 3: Cross multiply
    154,126.80x = 231,190.20 × 75,200.40
  4. Step 4: Simplify right side
    154,126.80x = 17,385,595,516.08
  5. Step 5: Solve for x
    x = 17,385,595,516.08/154,126.80
  6. Step 6: Final answer
    x = 112,800.60

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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.