Home / 135,348.75-186,778.58-74,919.38

Finding the Fourth Proportional to 135,348.75, 186,778.58 and 74,919.38

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Solution

The fourth proportional to 135,348.75, 186,778.58 and 74,919.38 is: 103,387.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,348.75 : 186,778.58 = 74,919.38 : x
  2. Step 2: Convert to fraction form
    135,348.75/186,778.58 = 74,919.38/x
  3. Step 3: Cross multiply
    135,348.75x = 186,778.58 × 74,919.38
  4. Step 4: Simplify right side
    135,348.75x = 13,993,334,102.39
  5. Step 5: Solve for x
    x = 13,993,334,102.39/135,348.75
  6. Step 6: Final answer
    x = 103,387.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.