Home / 154,080.90-231,121.35-140,302.80

Finding the Fourth Proportional to 154,080.90, 231,121.35 and 140,302.80

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Solution

The fourth proportional to 154,080.90, 231,121.35 and 140,302.80 is: 210,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,080.90 : 231,121.35 = 140,302.80 : x
  2. Step 2: Convert to fraction form
    154,080.90/231,121.35 = 140,302.80/x
  3. Step 3: Cross multiply
    154,080.90x = 231,121.35 × 140,302.80
  4. Step 4: Simplify right side
    154,080.90x = 32,426,972,544.78
  5. Step 5: Solve for x
    x = 32,426,972,544.78/154,080.90
  6. Step 6: Final answer
    x = 210,454.20

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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.