Home / 135,118.53-202,686.15-45,169.34

Finding the Fourth Proportional to 135,118.53, 202,686.15 and 45,169.34

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Solution

The fourth proportional to 135,118.53, 202,686.15 and 45,169.34 is: 67,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,118.53 : 202,686.15 = 45,169.34 : x
  2. Step 2: Convert to fraction form
    135,118.53/202,686.15 = 45,169.34/x
  3. Step 3: Cross multiply
    135,118.53x = 202,686.15 × 45,169.34
  4. Step 4: Simplify right side
    135,118.53x = 9,155,198,609.21
  5. Step 5: Solve for x
    x = 9,155,198,609.21/135,118.53
  6. Step 6: Final answer
    x = 67,756.80

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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.