Home / 149,824.97-206,756.37-81,841.13

Finding the Fourth Proportional to 149,824.97, 206,756.37 and 81,841.13

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Solution

The fourth proportional to 149,824.97, 206,756.37 and 81,841.13 is: 112,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,824.97 : 206,756.37 = 81,841.13 : x
  2. Step 2: Convert to fraction form
    149,824.97/206,756.37 = 81,841.13/x
  3. Step 3: Cross multiply
    149,824.97x = 206,756.37 × 81,841.13
  4. Step 4: Simplify right side
    149,824.97x = 16,921,174,955.50
  5. Step 5: Solve for x
    x = 16,921,174,955.50/149,824.97
  6. Step 6: Final answer
    x = 112,939.62

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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.