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Finding the Fourth Proportional to 170,605.80, 255,908.70 and 75,835.80

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Solution

The fourth proportional to 170,605.80, 255,908.70 and 75,835.80 is: 113,753.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,605.80 : 255,908.70 = 75,835.80 : x
  2. Step 2: Convert to fraction form
    170,605.80/255,908.70 = 75,835.80/x
  3. Step 3: Cross multiply
    170,605.80x = 255,908.70 × 75,835.80
  4. Step 4: Simplify right side
    170,605.80x = 19,407,040,991.46
  5. Step 5: Solve for x
    x = 19,407,040,991.46/170,605.80
  6. Step 6: Final answer
    x = 113,753.70

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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.