Home / 135,029.55-202,671.51-68,517.42

Finding the Fourth Proportional to 135,029.55, 202,671.51 and 68,517.42

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Solution

The fourth proportional to 135,029.55, 202,671.51 and 68,517.42 is: 102,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,029.55 : 202,671.51 = 68,517.42 : x
  2. Step 2: Convert to fraction form
    135,029.55/202,671.51 = 68,517.42/x
  3. Step 3: Cross multiply
    135,029.55x = 202,671.51 × 68,517.42
  4. Step 4: Simplify right side
    135,029.55x = 13,886,528,972.70
  5. Step 5: Solve for x
    x = 13,886,528,972.70/135,029.55
  6. Step 6: Final answer
    x = 102,840.67

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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.