Home / 123,786.18-170,824.86-67,197.60

Finding the Fourth Proportional to 123,786.18, 170,824.86 and 67,197.60

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Solution

The fourth proportional to 123,786.18, 170,824.86 and 67,197.60 is: 92,732.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,786.18 : 170,824.86 = 67,197.60 : x
  2. Step 2: Convert to fraction form
    123,786.18/170,824.86 = 67,197.60/x
  3. Step 3: Cross multiply
    123,786.18x = 170,824.86 × 67,197.60
  4. Step 4: Simplify right side
    123,786.18x = 11,479,020,612.34
  5. Step 5: Solve for x
    x = 11,479,020,612.34/123,786.18
  6. Step 6: Final answer
    x = 92,732.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.