Home / 149,706.66-206,586.39-81,710.13

Finding the Fourth Proportional to 149,706.66, 206,586.39 and 81,710.13

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Solution

The fourth proportional to 149,706.66, 206,586.39 and 81,710.13 is: 112,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,706.66 : 206,586.39 = 81,710.13 : x
  2. Step 2: Convert to fraction form
    149,706.66/206,586.39 = 81,710.13/x
  3. Step 3: Cross multiply
    149,706.66x = 206,586.39 × 81,710.13
  4. Step 4: Simplify right side
    149,706.66x = 16,880,200,783.13
  5. Step 5: Solve for x
    x = 16,880,200,783.13/149,706.66
  6. Step 6: Final answer
    x = 112,755.18

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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.