Home / 103,619.76-155,436.66-27,717.36

Finding the Fourth Proportional to 103,619.76, 155,436.66 and 27,717.36

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Solution

The fourth proportional to 103,619.76, 155,436.66 and 27,717.36 is: 41,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.76 : 155,436.66 = 27,717.36 : x
  2. Step 2: Convert to fraction form
    103,619.76/155,436.66 = 27,717.36/x
  3. Step 3: Cross multiply
    103,619.76x = 155,436.66 × 27,717.36
  4. Step 4: Simplify right side
    103,619.76x = 4,308,293,862.42
  5. Step 5: Solve for x
    x = 4,308,293,862.42/103,619.76
  6. Step 6: Final answer
    x = 41,577.92

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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.