Home / 218,638.46-301,724.91-123,148.55

Finding the Fourth Proportional to 218,638.46, 301,724.91 and 123,148.55

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Solution

The fourth proportional to 218,638.46, 301,724.91 and 123,148.55 is: 169,947.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,638.46 : 301,724.91 = 123,148.55 : x
  2. Step 2: Convert to fraction form
    218,638.46/301,724.91 = 123,148.55/x
  3. Step 3: Cross multiply
    218,638.46x = 301,724.91 × 123,148.55
  4. Step 4: Simplify right side
    218,638.46x = 37,156,983,656.76
  5. Step 5: Solve for x
    x = 37,156,983,656.76/218,638.46
  6. Step 6: Final answer
    x = 169,947.16

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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.