Home / 106,193.75-159,290.42-72,812.57

Finding the Fourth Proportional to 106,193.75, 159,290.42 and 72,812.57

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Solution

The fourth proportional to 106,193.75, 159,290.42 and 72,812.57 is: 109,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,193.75 : 159,290.42 = 72,812.57 : x
  2. Step 2: Convert to fraction form
    106,193.75/159,290.42 = 72,812.57/x
  3. Step 3: Cross multiply
    106,193.75x = 159,290.42 × 72,812.57
  4. Step 4: Simplify right side
    106,193.75x = 11,598,343,696.06
  5. Step 5: Solve for x
    x = 11,598,343,696.06/106,193.75
  6. Step 6: Final answer
    x = 109,218.71

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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.