Home / 149,490.11-206,297.96-81,506.52

Finding the Fourth Proportional to 149,490.11, 206,297.96 and 81,506.52

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Solution

The fourth proportional to 149,490.11, 206,297.96 and 81,506.52 is: 112,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,490.11 : 206,297.96 = 81,506.52 : x
  2. Step 2: Convert to fraction form
    149,490.11/206,297.96 = 81,506.52/x
  3. Step 3: Cross multiply
    149,490.11x = 206,297.96 × 81,506.52
  4. Step 4: Simplify right side
    149,490.11x = 16,814,628,395.17
  5. Step 5: Solve for x
    x = 16,814,628,395.17/149,490.11
  6. Step 6: Final answer
    x = 112,479.88

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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.