Home / 135,069.26-202,540.29-78,925.56

Finding the Fourth Proportional to 135,069.26, 202,540.29 and 78,925.56

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Solution

The fourth proportional to 135,069.26, 202,540.29 and 78,925.56 is: 118,351.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,069.26 : 202,540.29 = 78,925.56 : x
  2. Step 2: Convert to fraction form
    135,069.26/202,540.29 = 78,925.56/x
  3. Step 3: Cross multiply
    135,069.26x = 202,540.29 × 78,925.56
  4. Step 4: Simplify right side
    135,069.26x = 15,985,605,810.81
  5. Step 5: Solve for x
    x = 15,985,605,810.81/135,069.26
  6. Step 6: Final answer
    x = 118,351.18

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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.