Home / 123,512.60-170,447.55-66,923.93

Finding the Fourth Proportional to 123,512.60, 170,447.55 and 66,923.93

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Solution

The fourth proportional to 123,512.60, 170,447.55 and 66,923.93 is: 92,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,512.60 : 170,447.55 = 66,923.93 : x
  2. Step 2: Convert to fraction form
    123,512.60/170,447.55 = 66,923.93/x
  3. Step 3: Cross multiply
    123,512.60x = 170,447.55 × 66,923.93
  4. Step 4: Simplify right side
    123,512.60x = 11,407,019,904.87
  5. Step 5: Solve for x
    x = 11,407,019,904.87/123,512.60
  6. Step 6: Final answer
    x = 92,355.11

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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.