Home / 170,867.51-256,356.11-82,127.45

Finding the Fourth Proportional to 170,867.51, 256,356.11 and 82,127.45

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Solution

The fourth proportional to 170,867.51, 256,356.11 and 82,127.45 is: 123,217.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,867.51 : 256,356.11 = 82,127.45 : x
  2. Step 2: Convert to fraction form
    170,867.51/256,356.11 = 82,127.45/x
  3. Step 3: Cross multiply
    170,867.51x = 256,356.11 × 82,127.45
  4. Step 4: Simplify right side
    170,867.51x = 21,053,871,913.80
  5. Step 5: Solve for x
    x = 21,053,871,913.80/170,867.51
  6. Step 6: Final answer
    x = 123,217.53

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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.