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Finding the Fourth Proportional to 172,959.40, 259,439.10 and 60,766.30

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Solution

The fourth proportional to 172,959.40, 259,439.10 and 60,766.30 is: 91,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,959.40 : 259,439.10 = 60,766.30 : x
  2. Step 2: Convert to fraction form
    172,959.40/259,439.10 = 60,766.30/x
  3. Step 3: Cross multiply
    172,959.40x = 259,439.10 × 60,766.30
  4. Step 4: Simplify right side
    172,959.40x = 15,765,154,182.33
  5. Step 5: Solve for x
    x = 15,765,154,182.33/172,959.40
  6. Step 6: Final answer
    x = 91,149.45

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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.