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Finding the Fourth Proportional to 171,299.12, 256,860.12 and 75,197.00

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Solution

The fourth proportional to 171,299.12, 256,860.12 and 75,197.00 is: 112,756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,299.12 : 256,860.12 = 75,197.00 : x
  2. Step 2: Convert to fraction form
    171,299.12/256,860.12 = 75,197.00/x
  3. Step 3: Cross multiply
    171,299.12x = 256,860.12 × 75,197.00
  4. Step 4: Simplify right side
    171,299.12x = 19,315,109,159.34
  5. Step 5: Solve for x
    x = 19,315,109,159.34/171,299.12
  6. Step 6: Final answer
    x = 112,756.62

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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.