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Finding the Fourth Proportional to 122,571.69, 169,130.50 and 68,846.41

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Solution

The fourth proportional to 122,571.69, 169,130.50 and 68,846.41 is: 94,997.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,571.69 : 169,130.50 = 68,846.41 : x
  2. Step 2: Convert to fraction form
    122,571.69/169,130.50 = 68,846.41/x
  3. Step 3: Cross multiply
    122,571.69x = 169,130.50 × 68,846.41
  4. Step 4: Simplify right side
    122,571.69x = 11,644,027,746.51
  5. Step 5: Solve for x
    x = 11,644,027,746.51/122,571.69
  6. Step 6: Final answer
    x = 94,997.69

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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.