Home / 154,247.20-231,370.80-69,974.80

Finding the Fourth Proportional to 154,247.20, 231,370.80 and 69,974.80

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Solution

The fourth proportional to 154,247.20, 231,370.80 and 69,974.80 is: 104,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,247.20 : 231,370.80 = 69,974.80 : x
  2. Step 2: Convert to fraction form
    154,247.20/231,370.80 = 69,974.80/x
  3. Step 3: Cross multiply
    154,247.20x = 231,370.80 × 69,974.80
  4. Step 4: Simplify right side
    154,247.20x = 16,190,125,455.84
  5. Step 5: Solve for x
    x = 16,190,125,455.84/154,247.20
  6. Step 6: Final answer
    x = 104,962.20

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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.