Home / 123,110.50-169,850.06-74,727.68

Finding the Fourth Proportional to 123,110.50, 169,850.06 and 74,727.68

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Solution

The fourth proportional to 123,110.50, 169,850.06 and 74,727.68 is: 103,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,110.50 : 169,850.06 = 74,727.68 : x
  2. Step 2: Convert to fraction form
    123,110.50/169,850.06 = 74,727.68/x
  3. Step 3: Cross multiply
    123,110.50x = 169,850.06 × 74,727.68
  4. Step 4: Simplify right side
    123,110.50x = 12,692,500,931.66
  5. Step 5: Solve for x
    x = 12,692,500,931.66/123,110.50
  6. Step 6: Final answer
    x = 103,098.44

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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.