Home / 123,540.48-183,721.40-119,603.88

Finding the Fourth Proportional to 123,540.48, 183,721.40 and 119,603.88

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Solution

The fourth proportional to 123,540.48, 183,721.40 and 119,603.88 is: 177,867.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,540.48 : 183,721.40 = 119,603.88 : x
  2. Step 2: Convert to fraction form
    123,540.48/183,721.40 = 119,603.88/x
  3. Step 3: Cross multiply
    123,540.48x = 183,721.40 × 119,603.88
  4. Step 4: Simplify right side
    123,540.48x = 21,973,792,578.04
  5. Step 5: Solve for x
    x = 21,973,792,578.04/123,540.48
  6. Step 6: Final answer
    x = 177,867.15

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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.