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Finding the Fourth Proportional to 123,194.66, 170,014.41 and 69,478.56

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Solution

The fourth proportional to 123,194.66, 170,014.41 and 69,478.56 is: 95,883.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,194.66 : 170,014.41 = 69,478.56 : x
  2. Step 2: Convert to fraction form
    123,194.66/170,014.41 = 69,478.56/x
  3. Step 3: Cross multiply
    123,194.66x = 170,014.41 × 69,478.56
  4. Step 4: Simplify right side
    123,194.66x = 11,812,356,386.05
  5. Step 5: Solve for x
    x = 11,812,356,386.05/123,194.66
  6. Step 6: Final answer
    x = 95,883.68

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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.