Home / 149,409.32-206,177.49-81,426.11

Finding the Fourth Proportional to 149,409.32, 206,177.49 and 81,426.11

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Solution

The fourth proportional to 149,409.32, 206,177.49 and 81,426.11 is: 112,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,409.32 : 206,177.49 = 81,426.11 : x
  2. Step 2: Convert to fraction form
    149,409.32/206,177.49 = 81,426.11/x
  3. Step 3: Cross multiply
    149,409.32x = 206,177.49 × 81,426.11
  4. Step 4: Simplify right side
    149,409.32x = 16,788,229,949.38
  5. Step 5: Solve for x
    x = 16,788,229,949.38/149,409.32
  6. Step 6: Final answer
    x = 112,364.01

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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.