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Finding the Fourth Proportional to 128,166.63, 192,277.22 and 43,904.20

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Solution

The fourth proportional to 128,166.63, 192,277.22 and 43,904.20 is: 65,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,166.63 : 192,277.22 = 43,904.20 : x
  2. Step 2: Convert to fraction form
    128,166.63/192,277.22 = 43,904.20/x
  3. Step 3: Cross multiply
    128,166.63x = 192,277.22 × 43,904.20
  4. Step 4: Simplify right side
    128,166.63x = 8,441,776,907.97
  5. Step 5: Solve for x
    x = 8,441,776,907.97/128,166.63
  6. Step 6: Final answer
    x = 65,865.64

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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.