Home / 123,504.15-170,433.49-69,788

Finding the Fourth Proportional to 123,504.15, 170,433.49 and 69,788

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Solution

The fourth proportional to 123,504.15, 170,433.49 and 69,788 is: 96,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,504.15 : 170,433.49 = 69,788 : x
  2. Step 2: Convert to fraction form
    123,504.15/170,433.49 = 69,788/x
  3. Step 3: Cross multiply
    123,504.15x = 170,433.49 × 69,788
  4. Step 4: Simplify right side
    123,504.15x = 11,894,212,400.12
  5. Step 5: Solve for x
    x = 11,894,212,400.12/123,504.15
  6. Step 6: Final answer
    x = 96,306.18

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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.