Home / 146,630.95-219,872.61-71,638.72

Finding the Fourth Proportional to 146,630.95, 219,872.61 and 71,638.72

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Solution

The fourth proportional to 146,630.95, 219,872.61 and 71,638.72 is: 107,422.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,630.95 : 219,872.61 = 71,638.72 : x
  2. Step 2: Convert to fraction form
    146,630.95/219,872.61 = 71,638.72/x
  3. Step 3: Cross multiply
    146,630.95x = 219,872.61 × 71,638.72
  4. Step 4: Simplify right side
    146,630.95x = 15,751,392,343.46
  5. Step 5: Solve for x
    x = 15,751,392,343.46/146,630.95
  6. Step 6: Final answer
    x = 107,422.02

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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.