Home / 135,217.66-186,578.08-74,776.50

Finding the Fourth Proportional to 135,217.66, 186,578.08 and 74,776.50

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Solution

The fourth proportional to 135,217.66, 186,578.08 and 74,776.50 is: 103,179.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,217.66 : 186,578.08 = 74,776.50 : x
  2. Step 2: Convert to fraction form
    135,217.66/186,578.08 = 74,776.50/x
  3. Step 3: Cross multiply
    135,217.66x = 186,578.08 × 74,776.50
  4. Step 4: Simplify right side
    135,217.66x = 13,951,656,032.80
  5. Step 5: Solve for x
    x = 13,951,656,032.80/135,217.66
  6. Step 6: Final answer
    x = 103,179.24

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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.