Home / 123,217.12-183,934.40-108,270.28

Finding the Fourth Proportional to 123,217.12, 183,934.40 and 108,270.28

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Solution

The fourth proportional to 123,217.12, 183,934.40 and 108,270.28 is: 161,622.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,217.12 : 183,934.40 = 108,270.28 : x
  2. Step 2: Convert to fraction form
    123,217.12/183,934.40 = 108,270.28/x
  3. Step 3: Cross multiply
    123,217.12x = 183,934.40 × 108,270.28
  4. Step 4: Simplify right side
    123,217.12x = 19,914,628,989.63
  5. Step 5: Solve for x
    x = 19,914,628,989.63/123,217.12
  6. Step 6: Final answer
    x = 161,622.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.