Home / 123,499.06-170,428.88-66,910.44

Finding the Fourth Proportional to 123,499.06, 170,428.88 and 66,910.44

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Solution

The fourth proportional to 123,499.06, 170,428.88 and 66,910.44 is: 92,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,499.06 : 170,428.88 = 66,910.44 : x
  2. Step 2: Convert to fraction form
    123,499.06/170,428.88 = 66,910.44/x
  3. Step 3: Cross multiply
    123,499.06x = 170,428.88 × 66,910.44
  4. Step 4: Simplify right side
    123,499.06x = 11,403,471,349.51
  5. Step 5: Solve for x
    x = 11,403,471,349.51/123,499.06
  6. Step 6: Final answer
    x = 92,336.50

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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.