Home / 107,131.78-160,699.28-40,554.03

Finding the Fourth Proportional to 107,131.78, 160,699.28 and 40,554.03

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Solution

The fourth proportional to 107,131.78, 160,699.28 and 40,554.03 is: 60,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,131.78 : 160,699.28 = 40,554.03 : x
  2. Step 2: Convert to fraction form
    107,131.78/160,699.28 = 40,554.03/x
  3. Step 3: Cross multiply
    107,131.78x = 160,699.28 × 40,554.03
  4. Step 4: Simplify right side
    107,131.78x = 6,517,003,121.74
  5. Step 5: Solve for x
    x = 6,517,003,121.74/107,131.78
  6. Step 6: Final answer
    x = 60,831.65

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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.