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Finding the Fourth Proportional to 170,131.80, 255,197.70 and 117,643.80

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Solution

The fourth proportional to 170,131.80, 255,197.70 and 117,643.80 is: 176,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,131.80 : 255,197.70 = 117,643.80 : x
  2. Step 2: Convert to fraction form
    170,131.80/255,197.70 = 117,643.80/x
  3. Step 3: Cross multiply
    170,131.80x = 255,197.70 × 117,643.80
  4. Step 4: Simplify right side
    170,131.80x = 30,022,427,179.26
  5. Step 5: Solve for x
    x = 30,022,427,179.26/170,131.80
  6. Step 6: Final answer
    x = 176,465.70

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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.