Home / 123,839.32-170,900.24-70,122.88

Finding the Fourth Proportional to 123,839.32, 170,900.24 and 70,122.88

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Solution

The fourth proportional to 123,839.32, 170,900.24 and 70,122.88 is: 96,770.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,839.32 : 170,900.24 = 70,122.88 : x
  2. Step 2: Convert to fraction form
    123,839.32/170,900.24 = 70,122.88/x
  3. Step 3: Cross multiply
    123,839.32x = 170,900.24 × 70,122.88
  4. Step 4: Simplify right side
    123,839.32x = 11,984,017,021.49
  5. Step 5: Solve for x
    x = 11,984,017,021.49/123,839.32
  6. Step 6: Final answer
    x = 96,770.69

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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.