Home / 149,053.28-205,696.17-81,071.73

Finding the Fourth Proportional to 149,053.28, 205,696.17 and 81,071.73

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Solution

The fourth proportional to 149,053.28, 205,696.17 and 81,071.73 is: 111,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,053.28 : 205,696.17 = 81,071.73 : x
  2. Step 2: Convert to fraction form
    149,053.28/205,696.17 = 81,071.73/x
  3. Step 3: Cross multiply
    149,053.28x = 205,696.17 × 81,071.73
  4. Step 4: Simplify right side
    149,053.28x = 16,676,144,356.27
  5. Step 5: Solve for x
    x = 16,676,144,356.27/149,053.28
  6. Step 6: Final answer
    x = 111,880.43

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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.