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Finding the Fourth Proportional to 123,295.82, 170,147.93 and 69,580.67

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Solution

The fourth proportional to 123,295.82, 170,147.93 and 69,580.67 is: 96,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,295.82 : 170,147.93 = 69,580.67 : x
  2. Step 2: Convert to fraction form
    123,295.82/170,147.93 = 69,580.67/x
  3. Step 3: Cross multiply
    123,295.82x = 170,147.93 × 69,580.67
  4. Step 4: Simplify right side
    123,295.82x = 11,839,005,769.87
  5. Step 5: Solve for x
    x = 11,839,005,769.87/123,295.82
  6. Step 6: Final answer
    x = 96,021.15

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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.