Home / 170,422.40-255,633.60-107,436.80

Finding the Fourth Proportional to 170,422.40, 255,633.60 and 107,436.80

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Solution

The fourth proportional to 170,422.40, 255,633.60 and 107,436.80 is: 161,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,422.40 : 255,633.60 = 107,436.80 : x
  2. Step 2: Convert to fraction form
    170,422.40/255,633.60 = 107,436.80/x
  3. Step 3: Cross multiply
    170,422.40x = 255,633.60 × 107,436.80
  4. Step 4: Simplify right side
    170,422.40x = 27,464,455,956.48
  5. Step 5: Solve for x
    x = 27,464,455,956.48/170,422.40
  6. Step 6: Final answer
    x = 161,155.20

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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.