Home / 135,167.47-202,729.90-45,209.50

Finding the Fourth Proportional to 135,167.47, 202,729.90 and 45,209.50

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Solution

The fourth proportional to 135,167.47, 202,729.90 and 45,209.50 is: 67,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,167.47 : 202,729.90 = 45,209.50 : x
  2. Step 2: Convert to fraction form
    135,167.47/202,729.90 = 45,209.50/x
  3. Step 3: Cross multiply
    135,167.47x = 202,729.90 × 45,209.50
  4. Step 4: Simplify right side
    135,167.47x = 9,165,317,414.05
  5. Step 5: Solve for x
    x = 9,165,317,414.05/135,167.47
  6. Step 6: Final answer
    x = 67,807.12

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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.