Home / 123,099.60-169,877.44-66,510.96

Finding the Fourth Proportional to 123,099.60, 169,877.44 and 66,510.96

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Solution

The fourth proportional to 123,099.60, 169,877.44 and 66,510.96 is: 91,785.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,099.60 : 169,877.44 = 66,510.96 : x
  2. Step 2: Convert to fraction form
    123,099.60/169,877.44 = 66,510.96/x
  3. Step 3: Cross multiply
    123,099.60x = 169,877.44 × 66,510.96
  4. Step 4: Simplify right side
    123,099.60x = 11,298,711,616.74
  5. Step 5: Solve for x
    x = 11,298,711,616.74/123,099.60
  6. Step 6: Final answer
    x = 91,785.12

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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.