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Finding the Fourth Proportional to 151,612, 209,224.56 and 84,542.56

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Solution

The fourth proportional to 151,612, 209,224.56 and 84,542.56 is: 116,668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,612 : 209,224.56 = 84,542.56 : x
  2. Step 2: Convert to fraction form
    151,612/209,224.56 = 84,542.56/x
  3. Step 3: Cross multiply
    151,612x = 209,224.56 × 84,542.56
  4. Step 4: Simplify right side
    151,612x = 17,688,379,917.27
  5. Step 5: Solve for x
    x = 17,688,379,917.27/151,612
  6. Step 6: Final answer
    x = 116,668.73

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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.