Home / 149,689.32-206,573.19-81,708.25

Finding the Fourth Proportional to 149,689.32, 206,573.19 and 81,708.25

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Solution

The fourth proportional to 149,689.32, 206,573.19 and 81,708.25 is: 112,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,689.32 : 206,573.19 = 81,708.25 : x
  2. Step 2: Convert to fraction form
    149,689.32/206,573.19 = 81,708.25/x
  3. Step 3: Cross multiply
    149,689.32x = 206,573.19 × 81,708.25
  4. Step 4: Simplify right side
    149,689.32x = 16,878,732,410.41
  5. Step 5: Solve for x
    x = 16,878,732,410.41/149,689.32
  6. Step 6: Final answer
    x = 112,758.43

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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.