Home / 149,463.22-206,252.85-81,478.57

Finding the Fourth Proportional to 149,463.22, 206,252.85 and 81,478.57

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Solution

The fourth proportional to 149,463.22, 206,252.85 and 81,478.57 is: 112,436.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,463.22 : 206,252.85 = 81,478.57 : x
  2. Step 2: Convert to fraction form
    149,463.22/206,252.85 = 81,478.57/x
  3. Step 3: Cross multiply
    149,463.22x = 206,252.85 × 81,478.57
  4. Step 4: Simplify right side
    149,463.22x = 16,805,187,276.42
  5. Step 5: Solve for x
    x = 16,805,187,276.42/149,463.22
  6. Step 6: Final answer
    x = 112,436.94

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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.