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Finding the Fourth Proportional to 123,148.16, 169,944.77 and 66,559.54

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Solution

The fourth proportional to 123,148.16, 169,944.77 and 66,559.54 is: 91,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,148.16 : 169,944.77 = 66,559.54 : x
  2. Step 2: Convert to fraction form
    123,148.16/169,944.77 = 66,559.54/x
  3. Step 3: Cross multiply
    123,148.16x = 169,944.77 × 66,559.54
  4. Step 4: Simplify right side
    123,148.16x = 11,311,445,402.39
  5. Step 5: Solve for x
    x = 11,311,445,402.39/123,148.16
  6. Step 6: Final answer
    x = 91,852.33

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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.