Home / 122,956.56-169,683.96-71,974.32

Finding the Fourth Proportional to 122,956.56, 169,683.96 and 71,974.32

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Solution

The fourth proportional to 122,956.56, 169,683.96 and 71,974.32 is: 99,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,956.56 : 169,683.96 = 71,974.32 : x
  2. Step 2: Convert to fraction form
    122,956.56/169,683.96 = 71,974.32/x
  3. Step 3: Cross multiply
    122,956.56x = 169,683.96 × 71,974.32
  4. Step 4: Simplify right side
    122,956.56x = 12,212,887,635.91
  5. Step 5: Solve for x
    x = 12,212,887,635.91/122,956.56
  6. Step 6: Final answer
    x = 99,326.85

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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.