Home / 137,439.66-206,205.62-74,265.44

Finding the Fourth Proportional to 137,439.66, 206,205.62 and 74,265.44

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Solution

The fourth proportional to 137,439.66, 206,205.62 and 74,265.44 is: 111,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,439.66 : 206,205.62 = 74,265.44 : x
  2. Step 2: Convert to fraction form
    137,439.66/206,205.62 = 74,265.44/x
  3. Step 3: Cross multiply
    137,439.66x = 206,205.62 × 74,265.44
  4. Step 4: Simplify right side
    137,439.66x = 15,313,949,697.42
  5. Step 5: Solve for x
    x = 15,313,949,697.42/137,439.66
  6. Step 6: Final answer
    x = 111,423.08

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1.5x scale

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.