Home / 112,304.54-154,840.20-71,951.96

Finding the Fourth Proportional to 112,304.54, 154,840.20 and 71,951.96

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Solution

The fourth proportional to 112,304.54, 154,840.20 and 71,951.96 is: 99,203.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,304.54 : 154,840.20 = 71,951.96 : x
  2. Step 2: Convert to fraction form
    112,304.54/154,840.20 = 71,951.96/x
  3. Step 3: Cross multiply
    112,304.54x = 154,840.20 × 71,951.96
  4. Step 4: Simplify right side
    112,304.54x = 11,141,055,876.79
  5. Step 5: Solve for x
    x = 11,141,055,876.79/112,304.54
  6. Step 6: Final answer
    x = 99,203.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.