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Finding the Fourth Proportional to 101,762.84, 140,270.52 and 80,217.48

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Solution

The fourth proportional to 101,762.84, 140,270.52 and 80,217.48 is: 110,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,762.84 : 140,270.52 = 80,217.48 : x
  2. Step 2: Convert to fraction form
    101,762.84/140,270.52 = 80,217.48/x
  3. Step 3: Cross multiply
    101,762.84x = 140,270.52 × 80,217.48
  4. Step 4: Simplify right side
    101,762.84x = 11,252,147,632.69
  5. Step 5: Solve for x
    x = 11,252,147,632.69/101,762.84
  6. Step 6: Final answer
    x = 110,572.26

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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.