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Finding the Fourth Proportional to 122,477.71, 183,716.57 and 38,245.09

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Solution

The fourth proportional to 122,477.71, 183,716.57 and 38,245.09 is: 57,367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,477.71 : 183,716.57 = 38,245.09 : x
  2. Step 2: Convert to fraction form
    122,477.71/183,716.57 = 38,245.09/x
  3. Step 3: Cross multiply
    122,477.71x = 183,716.57 × 38,245.09
  4. Step 4: Simplify right side
    122,477.71x = 7,026,256,754.14
  5. Step 5: Solve for x
    x = 7,026,256,754.14/122,477.71
  6. Step 6: Final answer
    x = 57,367.64

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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.