Home / 135,350.82-202,912.02-85,320.60

Finding the Fourth Proportional to 135,350.82, 202,912.02 and 85,320.60

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Solution

The fourth proportional to 135,350.82, 202,912.02 and 85,320.60 is: 127,908.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,350.82 : 202,912.02 = 85,320.60 : x
  2. Step 2: Convert to fraction form
    135,350.82/202,912.02 = 85,320.60/x
  3. Step 3: Cross multiply
    135,350.82x = 202,912.02 × 85,320.60
  4. Step 4: Simplify right side
    135,350.82x = 17,312,575,293.61
  5. Step 5: Solve for x
    x = 17,312,575,293.61/135,350.82
  6. Step 6: Final answer
    x = 127,908.91

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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.