Home / 123,999.24-171,132.33-70,278.49

Finding the Fourth Proportional to 123,999.24, 171,132.33 and 70,278.49

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Solution

The fourth proportional to 123,999.24, 171,132.33 and 70,278.49 is: 96,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,999.24 : 171,132.33 = 70,278.49 : x
  2. Step 2: Convert to fraction form
    123,999.24/171,132.33 = 70,278.49/x
  3. Step 3: Cross multiply
    123,999.24x = 171,132.33 × 70,278.49
  4. Step 4: Simplify right side
    123,999.24x = 12,026,921,314.75
  5. Step 5: Solve for x
    x = 12,026,921,314.75/123,999.24
  6. Step 6: Final answer
    x = 96,991.90

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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.