Home / 154,076.80-231,115.20-79,092.40

Finding the Fourth Proportional to 154,076.80, 231,115.20 and 79,092.40

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Solution

The fourth proportional to 154,076.80, 231,115.20 and 79,092.40 is: 118,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,076.80 : 231,115.20 = 79,092.40 : x
  2. Step 2: Convert to fraction form
    154,076.80/231,115.20 = 79,092.40/x
  3. Step 3: Cross multiply
    154,076.80x = 231,115.20 × 79,092.40
  4. Step 4: Simplify right side
    154,076.80x = 18,279,455,844.48
  5. Step 5: Solve for x
    x = 18,279,455,844.48/154,076.80
  6. Step 6: Final answer
    x = 118,638.60

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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.