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Finding the Fourth Proportional to 101,952.72, 140,721.48 and 57,255.12

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Solution

The fourth proportional to 101,952.72, 140,721.48 and 57,255.12 is: 79,027.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,952.72 : 140,721.48 = 57,255.12 : x
  2. Step 2: Convert to fraction form
    101,952.72/140,721.48 = 57,255.12/x
  3. Step 3: Cross multiply
    101,952.72x = 140,721.48 × 57,255.12
  4. Step 4: Simplify right side
    101,952.72x = 8,057,025,223.98
  5. Step 5: Solve for x
    x = 8,057,025,223.98/101,952.72
  6. Step 6: Final answer
    x = 79,027.07

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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.