Home / 170,961.40-256,442.10-123,722.20

Finding the Fourth Proportional to 170,961.40, 256,442.10 and 123,722.20

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Solution

The fourth proportional to 170,961.40, 256,442.10 and 123,722.20 is: 185,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,961.40 : 256,442.10 = 123,722.20 : x
  2. Step 2: Convert to fraction form
    170,961.40/256,442.10 = 123,722.20/x
  3. Step 3: Cross multiply
    170,961.40x = 256,442.10 × 123,722.20
  4. Step 4: Simplify right side
    170,961.40x = 31,727,580,784.62
  5. Step 5: Solve for x
    x = 31,727,580,784.62/170,961.40
  6. Step 6: Final answer
    x = 185,583.30

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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.