Home / 170,254.20-255,423.06-85,806.84

Finding the Fourth Proportional to 170,254.20, 255,423.06 and 85,806.84

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Solution

The fourth proportional to 170,254.20, 255,423.06 and 85,806.84 is: 128,731.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,254.20 : 255,423.06 = 85,806.84 : x
  2. Step 2: Convert to fraction form
    170,254.20/255,423.06 = 85,806.84/x
  3. Step 3: Cross multiply
    170,254.20x = 255,423.06 × 85,806.84
  4. Step 4: Simplify right side
    170,254.20x = 21,917,045,641.73
  5. Step 5: Solve for x
    x = 21,917,045,641.73/170,254.20
  6. Step 6: Final answer
    x = 128,731.31

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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.