Home / 170,933.40-256,400.10-82,359.90

Finding the Fourth Proportional to 170,933.40, 256,400.10 and 82,359.90

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Solution

The fourth proportional to 170,933.40, 256,400.10 and 82,359.90 is: 123,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,933.40 : 256,400.10 = 82,359.90 : x
  2. Step 2: Convert to fraction form
    170,933.40/256,400.10 = 82,359.90/x
  3. Step 3: Cross multiply
    170,933.40x = 256,400.10 × 82,359.90
  4. Step 4: Simplify right side
    170,933.40x = 21,117,086,595.99
  5. Step 5: Solve for x
    x = 21,117,086,595.99/170,933.40
  6. Step 6: Final answer
    x = 123,539.85

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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.