Home / 123,590.97-170,573.75-78,273.17

Finding the Fourth Proportional to 123,590.97, 170,573.75 and 78,273.17

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Solution

The fourth proportional to 123,590.97, 170,573.75 and 78,273.17 is: 108,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,590.97 : 170,573.75 = 78,273.17 : x
  2. Step 2: Convert to fraction form
    123,590.97/170,573.75 = 78,273.17/x
  3. Step 3: Cross multiply
    123,590.97x = 170,573.75 × 78,273.17
  4. Step 4: Simplify right side
    123,590.97x = 13,351,348,131.29
  5. Step 5: Solve for x
    x = 13,351,348,131.29/123,590.97
  6. Step 6: Final answer
    x = 108,028.51

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1.5x scale

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.