Home / 105,781.56-158,678.82-34,708.92

Finding the Fourth Proportional to 105,781.56, 158,678.82 and 34,708.92

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Solution

The fourth proportional to 105,781.56, 158,678.82 and 34,708.92 is: 52,065.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,781.56 : 158,678.82 = 34,708.92 : x
  2. Step 2: Convert to fraction form
    105,781.56/158,678.82 = 34,708.92/x
  3. Step 3: Cross multiply
    105,781.56x = 158,678.82 × 34,708.92
  4. Step 4: Simplify right side
    105,781.56x = 5,507,570,469.07
  5. Step 5: Solve for x
    x = 5,507,570,469.07/105,781.56
  6. Step 6: Final answer
    x = 52,065.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.