Home / 137,708.29-206,368.56-109,503.06

Finding the Fourth Proportional to 137,708.29, 206,368.56 and 109,503.06

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Solution

The fourth proportional to 137,708.29, 206,368.56 and 109,503.06 is: 164,100.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,708.29 : 206,368.56 = 109,503.06 : x
  2. Step 2: Convert to fraction form
    137,708.29/206,368.56 = 109,503.06/x
  3. Step 3: Cross multiply
    137,708.29x = 206,368.56 × 109,503.06
  4. Step 4: Simplify right side
    137,708.29x = 22,597,988,033.91
  5. Step 5: Solve for x
    x = 22,597,988,033.91/137,708.29
  6. Step 6: Final answer
    x = 164,100.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.