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Finding the Fourth Proportional to 123,323.70, 170,187.12 and 66,735.06

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Solution

The fourth proportional to 123,323.70, 170,187.12 and 66,735.06 is: 92,094.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,323.70 : 170,187.12 = 66,735.06 : x
  2. Step 2: Convert to fraction form
    123,323.70/170,187.12 = 66,735.06/x
  3. Step 3: Cross multiply
    123,323.70x = 170,187.12 × 66,735.06
  4. Step 4: Simplify right side
    123,323.70x = 11,357,447,664.43
  5. Step 5: Solve for x
    x = 11,357,447,664.43/123,323.70
  6. Step 6: Final answer
    x = 92,094.61

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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.