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Finding the Fourth Proportional to 154,572.20, 231,858.30 and 75,840.20

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Solution

The fourth proportional to 154,572.20, 231,858.30 and 75,840.20 is: 113,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,572.20 : 231,858.30 = 75,840.20 : x
  2. Step 2: Convert to fraction form
    154,572.20/231,858.30 = 75,840.20/x
  3. Step 3: Cross multiply
    154,572.20x = 231,858.30 × 75,840.20
  4. Step 4: Simplify right side
    154,572.20x = 17,584,179,843.66
  5. Step 5: Solve for x
    x = 17,584,179,843.66/154,572.20
  6. Step 6: Final answer
    x = 113,760.30

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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.