Home / 105,947.66-146,337.29-79,209.02

Finding the Fourth Proportional to 105,947.66, 146,337.29 and 79,209.02

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Solution

The fourth proportional to 105,947.66, 146,337.29 and 79,209.02 is: 109,405.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,947.66 : 146,337.29 = 79,209.02 : x
  2. Step 2: Convert to fraction form
    105,947.66/146,337.29 = 79,209.02/x
  3. Step 3: Cross multiply
    105,947.66x = 146,337.29 × 79,209.02
  4. Step 4: Simplify right side
    105,947.66x = 11,591,232,202.62
  5. Step 5: Solve for x
    x = 11,591,232,202.62/105,947.66
  6. Step 6: Final answer
    x = 109,405.27

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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.