Home / 123,254.15-170,091.41-68,808.78

Finding the Fourth Proportional to 123,254.15, 170,091.41 and 68,808.78

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Solution

The fourth proportional to 123,254.15, 170,091.41 and 68,808.78 is: 94,956.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,254.15 : 170,091.41 = 68,808.78 : x
  2. Step 2: Convert to fraction form
    123,254.15/170,091.41 = 68,808.78/x
  3. Step 3: Cross multiply
    123,254.15x = 170,091.41 × 68,808.78
  4. Step 4: Simplify right side
    123,254.15x = 11,703,782,066.54
  5. Step 5: Solve for x
    x = 11,703,782,066.54/123,254.15
  6. Step 6: Final answer
    x = 94,956.50

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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.