Home / 123,972.16-171,080.56-67,383.36

Finding the Fourth Proportional to 123,972.16, 171,080.56 and 67,383.36

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Solution

The fourth proportional to 123,972.16, 171,080.56 and 67,383.36 is: 92,988.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,972.16 : 171,080.56 = 67,383.36 : x
  2. Step 2: Convert to fraction form
    123,972.16/171,080.56 = 67,383.36/x
  3. Step 3: Cross multiply
    123,972.16x = 171,080.56 × 67,383.36
  4. Step 4: Simplify right side
    123,972.16x = 11,527,982,963.48
  5. Step 5: Solve for x
    x = 11,527,982,963.48/123,972.16
  6. Step 6: Final answer
    x = 92,988.48

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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.