Home / 123,119.28-169,838.04-82,353.84

Finding the Fourth Proportional to 123,119.28, 169,838.04 and 82,353.84

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Solution

The fourth proportional to 123,119.28, 169,838.04 and 82,353.84 is: 113,603.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,119.28 : 169,838.04 = 82,353.84 : x
  2. Step 2: Convert to fraction form
    123,119.28/169,838.04 = 82,353.84/x
  3. Step 3: Cross multiply
    123,119.28x = 169,838.04 × 82,353.84
  4. Step 4: Simplify right side
    123,119.28x = 13,986,814,772.07
  5. Step 5: Solve for x
    x = 13,986,814,772.07/123,119.28
  6. Step 6: Final answer
    x = 113,603.77

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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.