Home / 137,370.57-206,188.83-66,343.08

Finding the Fourth Proportional to 137,370.57, 206,188.83 and 66,343.08

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Solution

The fourth proportional to 137,370.57, 206,188.83 and 66,343.08 is: 99,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,370.57 : 206,188.83 = 66,343.08 : x
  2. Step 2: Convert to fraction form
    137,370.57/206,188.83 = 66,343.08/x
  3. Step 3: Cross multiply
    137,370.57x = 206,188.83 × 66,343.08
  4. Step 4: Simplify right side
    137,370.57x = 13,679,202,043.80
  5. Step 5: Solve for x
    x = 13,679,202,043.80/137,370.57
  6. Step 6: Final answer
    x = 99,578.84

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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.