Home / 111,929.80-167,741.10-91,193.80

Finding the Fourth Proportional to 111,929.80, 167,741.10 and 91,193.80

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Solution

The fourth proportional to 111,929.80, 167,741.10 and 91,193.80 is: 136,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,929.80 : 167,741.10 = 91,193.80 : x
  2. Step 2: Convert to fraction form
    111,929.80/167,741.10 = 91,193.80/x
  3. Step 3: Cross multiply
    111,929.80x = 167,741.10 × 91,193.80
  4. Step 4: Simplify right side
    111,929.80x = 15,296,948,325.18
  5. Step 5: Solve for x
    x = 15,296,948,325.18/111,929.80
  6. Step 6: Final answer
    x = 136,665.56

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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.