Home / 115,816.14-159,829.25-68,072.04

Finding the Fourth Proportional to 115,816.14, 159,829.25 and 68,072.04

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Solution

The fourth proportional to 115,816.14, 159,829.25 and 68,072.04 is: 93,941.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,816.14 : 159,829.25 = 68,072.04 : x
  2. Step 2: Convert to fraction form
    115,816.14/159,829.25 = 68,072.04/x
  3. Step 3: Cross multiply
    115,816.14x = 159,829.25 × 68,072.04
  4. Step 4: Simplify right side
    115,816.14x = 10,879,902,758.81
  5. Step 5: Solve for x
    x = 10,879,902,758.81/115,816.14
  6. Step 6: Final answer
    x = 93,941.16

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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.