Home / 123,082.04-169,788.11-84,775.70

Finding the Fourth Proportional to 123,082.04, 169,788.11 and 84,775.70

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Solution

The fourth proportional to 123,082.04, 169,788.11 and 84,775.70 is: 116,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,082.04 : 169,788.11 = 84,775.70 : x
  2. Step 2: Convert to fraction form
    123,082.04/169,788.11 = 84,775.70/x
  3. Step 3: Cross multiply
    123,082.04x = 169,788.11 × 84,775.70
  4. Step 4: Simplify right side
    123,082.04x = 14,393,906,513.34
  5. Step 5: Solve for x
    x = 14,393,906,513.34/123,082.04
  6. Step 6: Final answer
    x = 116,945.63

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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.