Home / 107,981.98-161,986.64-36,918.25

Finding the Fourth Proportional to 107,981.98, 161,986.64 and 36,918.25

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Solution

The fourth proportional to 107,981.98, 161,986.64 and 36,918.25 is: 55,382.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,981.98 : 161,986.64 = 36,918.25 : x
  2. Step 2: Convert to fraction form
    107,981.98/161,986.64 = 36,918.25/x
  3. Step 3: Cross multiply
    107,981.98x = 161,986.64 × 36,918.25
  4. Step 4: Simplify right side
    107,981.98x = 5,980,262,682.62
  5. Step 5: Solve for x
    x = 5,980,262,682.62/107,981.98
  6. Step 6: Final answer
    x = 55,382.04

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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.