Home / 123,250.53-170,085.74-66,661.91

Finding the Fourth Proportional to 123,250.53, 170,085.74 and 66,661.91

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Solution

The fourth proportional to 123,250.53, 170,085.74 and 66,661.91 is: 91,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,250.53 : 170,085.74 = 66,661.91 : x
  2. Step 2: Convert to fraction form
    123,250.53/170,085.74 = 66,661.91/x
  3. Step 3: Cross multiply
    123,250.53x = 170,085.74 × 66,661.91
  4. Step 4: Simplify right side
    123,250.53x = 11,338,239,108.43
  5. Step 5: Solve for x
    x = 11,338,239,108.43/123,250.53
  6. Step 6: Final answer
    x = 91,993.43

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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.