Home / 149,429.25-206,211.03-81,446.22

Finding the Fourth Proportional to 149,429.25, 206,211.03 and 81,446.22

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Solution

The fourth proportional to 149,429.25, 206,211.03 and 81,446.22 is: 112,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,429.25 : 206,211.03 = 81,446.22 : x
  2. Step 2: Convert to fraction form
    149,429.25/206,211.03 = 81,446.22/x
  3. Step 3: Cross multiply
    149,429.25x = 206,211.03 × 81,446.22
  4. Step 4: Simplify right side
    149,429.25x = 16,795,108,915.81
  5. Step 5: Solve for x
    x = 16,795,108,915.81/149,429.25
  6. Step 6: Final answer
    x = 112,395.06

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1.5x scale

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.