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Finding the Fourth Proportional to 123,035.79, 169,783.11 and 69,323.98

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Solution

The fourth proportional to 123,035.79, 169,783.11 and 69,323.98 is: 95,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,035.79 : 169,783.11 = 69,323.98 : x
  2. Step 2: Convert to fraction form
    123,035.79/169,783.11 = 69,323.98/x
  3. Step 3: Cross multiply
    123,035.79x = 169,783.11 × 69,323.98
  4. Step 4: Simplify right side
    123,035.79x = 11,770,040,921.98
  5. Step 5: Solve for x
    x = 11,770,040,921.98/123,035.79
  6. Step 6: Final answer
    x = 95,663.55

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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.