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Finding the Fourth Proportional to 122,171.83, 183,144.98 and 84,749.56

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Solution

The fourth proportional to 122,171.83, 183,144.98 and 84,749.56 is: 127,046.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,171.83 : 183,144.98 = 84,749.56 : x
  2. Step 2: Convert to fraction form
    122,171.83/183,144.98 = 84,749.56/x
  3. Step 3: Cross multiply
    122,171.83x = 183,144.98 × 84,749.56
  4. Step 4: Simplify right side
    122,171.83x = 15,521,456,225.22
  5. Step 5: Solve for x
    x = 15,521,456,225.22/122,171.83
  6. Step 6: Final answer
    x = 127,046.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.