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Finding the Fourth Proportional to 144,600.63, 199,556.51 and 90,865.77

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Solution

The fourth proportional to 144,600.63, 199,556.51 and 90,865.77 is: 125,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,600.63 : 199,556.51 = 90,865.77 : x
  2. Step 2: Convert to fraction form
    144,600.63/199,556.51 = 90,865.77/x
  3. Step 3: Cross multiply
    144,600.63x = 199,556.51 × 90,865.77
  4. Step 4: Simplify right side
    144,600.63x = 18,132,855,485.33
  5. Step 5: Solve for x
    x = 18,132,855,485.33/144,600.63
  6. Step 6: Final answer
    x = 125,399.56

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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.