Home / 123,360.49-170,237.73-66,771.87

Finding the Fourth Proportional to 123,360.49, 170,237.73 and 66,771.87

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Solution

The fourth proportional to 123,360.49, 170,237.73 and 66,771.87 is: 92,145.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,360.49 : 170,237.73 = 66,771.87 : x
  2. Step 2: Convert to fraction form
    123,360.49/170,237.73 = 66,771.87/x
  3. Step 3: Cross multiply
    123,360.49x = 170,237.73 × 66,771.87
  4. Step 4: Simplify right side
    123,360.49x = 11,367,091,576.66
  5. Step 5: Solve for x
    x = 11,367,091,576.66/123,360.49
  6. Step 6: Final answer
    x = 92,145.32

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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.