Home / 122,708.93-169,281.46-71,723.81

Finding the Fourth Proportional to 122,708.93, 169,281.46 and 71,723.81

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Solution

The fourth proportional to 122,708.93, 169,281.46 and 71,723.81 is: 98,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,708.93 : 169,281.46 = 71,723.81 : x
  2. Step 2: Convert to fraction form
    122,708.93/169,281.46 = 71,723.81/x
  3. Step 3: Cross multiply
    122,708.93x = 169,281.46 × 71,723.81
  4. Step 4: Simplify right side
    122,708.93x = 12,141,511,786.42
  5. Step 5: Solve for x
    x = 12,141,511,786.42/122,708.93
  6. Step 6: Final answer
    x = 98,945.63

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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.