Home / 123,330.43-170,195.36-66,741.81

Finding the Fourth Proportional to 123,330.43, 170,195.36 and 66,741.81

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Solution

The fourth proportional to 123,330.43, 170,195.36 and 66,741.81 is: 92,103.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,330.43 : 170,195.36 = 66,741.81 : x
  2. Step 2: Convert to fraction form
    123,330.43/170,195.36 = 66,741.81/x
  3. Step 3: Cross multiply
    123,330.43x = 170,195.36 × 66,741.81
  4. Step 4: Simplify right side
    123,330.43x = 11,359,146,380.00
  5. Step 5: Solve for x
    x = 11,359,146,380.00/123,330.43
  6. Step 6: Final answer
    x = 92,103.36

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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.