Home / 170,307.20-255,263.70-80,406.92

Finding the Fourth Proportional to 170,307.20, 255,263.70 and 80,406.92

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Solution

The fourth proportional to 170,307.20, 255,263.70 and 80,406.92 is: 120,517.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,307.20 : 255,263.70 = 80,406.92 : x
  2. Step 2: Convert to fraction form
    170,307.20/255,263.70 = 80,406.92/x
  3. Step 3: Cross multiply
    170,307.20x = 255,263.70 × 80,406.92
  4. Step 4: Simplify right side
    170,307.20x = 20,524,967,904.80
  5. Step 5: Solve for x
    x = 20,524,967,904.80/170,307.20
  6. Step 6: Final answer
    x = 120,517.32

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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.