Home / 105,917.66-146,102.18-62,868.78

Finding the Fourth Proportional to 105,917.66, 146,102.18 and 62,868.78

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Solution

The fourth proportional to 105,917.66, 146,102.18 and 62,868.78 is: 86,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,917.66 : 146,102.18 = 62,868.78 : x
  2. Step 2: Convert to fraction form
    105,917.66/146,102.18 = 62,868.78/x
  3. Step 3: Cross multiply
    105,917.66x = 146,102.18 × 62,868.78
  4. Step 4: Simplify right side
    105,917.66x = 9,185,265,811.94
  5. Step 5: Solve for x
    x = 9,185,265,811.94/105,917.66
  6. Step 6: Final answer
    x = 86,720.82

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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.