Home / 109,086.60-150,517.80-61,338.72

Finding the Fourth Proportional to 109,086.60, 150,517.80 and 61,338.72

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Solution

The fourth proportional to 109,086.60, 150,517.80 and 61,338.72 is: 84,635.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,086.60 : 150,517.80 = 61,338.72 : x
  2. Step 2: Convert to fraction form
    109,086.60/150,517.80 = 61,338.72/x
  3. Step 3: Cross multiply
    109,086.60x = 150,517.80 × 61,338.72
  4. Step 4: Simplify right side
    109,086.60x = 9,232,569,189.22
  5. Step 5: Solve for x
    x = 9,232,569,189.22/109,086.60
  6. Step 6: Final answer
    x = 84,635.23

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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.