Home / 137,086.22-205,646.25-66,912.50

Finding the Fourth Proportional to 137,086.22, 205,646.25 and 66,912.50

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Solution

The fourth proportional to 137,086.22, 205,646.25 and 66,912.50 is: 100,377.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,086.22 : 205,646.25 = 66,912.50 : x
  2. Step 2: Convert to fraction form
    137,086.22/205,646.25 = 66,912.50/x
  3. Step 3: Cross multiply
    137,086.22x = 205,646.25 × 66,912.50
  4. Step 4: Simplify right side
    137,086.22x = 13,760,304,703.13
  5. Step 5: Solve for x
    x = 13,760,304,703.13/137,086.22
  6. Step 6: Final answer
    x = 100,377.01

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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.