Home / 135,066.26-202,535.79-78,922.56

Finding the Fourth Proportional to 135,066.26, 202,535.79 and 78,922.56

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Solution

The fourth proportional to 135,066.26, 202,535.79 and 78,922.56 is: 118,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,066.26 : 202,535.79 = 78,922.56 : x
  2. Step 2: Convert to fraction form
    135,066.26/202,535.79 = 78,922.56/x
  3. Step 3: Cross multiply
    135,066.26x = 202,535.79 × 78,922.56
  4. Step 4: Simplify right side
    135,066.26x = 15,984,643,038.42
  5. Step 5: Solve for x
    x = 15,984,643,038.42/135,066.26
  6. Step 6: Final answer
    x = 118,346.68

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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.