Home / 123,839.36-170,908.96-70,133.84

Finding the Fourth Proportional to 123,839.36, 170,908.96 and 70,133.84

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Solution

The fourth proportional to 123,839.36, 170,908.96 and 70,133.84 is: 96,790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,839.36 : 170,908.96 = 70,133.84 : x
  2. Step 2: Convert to fraction form
    123,839.36/170,908.96 = 70,133.84/x
  3. Step 3: Cross multiply
    123,839.36x = 170,908.96 × 70,133.84
  4. Step 4: Simplify right side
    123,839.36x = 11,986,501,655.21
  5. Step 5: Solve for x
    x = 11,986,501,655.21/123,839.36
  6. Step 6: Final answer
    x = 96,790.73

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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.