Home / 123,215.00-170,036.88-66,626.37

Finding the Fourth Proportional to 123,215.00, 170,036.88 and 66,626.37

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Solution

The fourth proportional to 123,215.00, 170,036.88 and 66,626.37 is: 91,944.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,215.00 : 170,036.88 = 66,626.37 : x
  2. Step 2: Convert to fraction form
    123,215.00/170,036.88 = 66,626.37/x
  3. Step 3: Cross multiply
    123,215.00x = 170,036.88 × 66,626.37
  4. Step 4: Simplify right side
    123,215.00x = 11,328,939,830.68
  5. Step 5: Solve for x
    x = 11,328,939,830.68/123,215.00
  6. Step 6: Final answer
    x = 91,944.49

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1.5x scale

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.