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Finding the Fourth Proportional to 144,911.44, 199,977.78 and 81,249.22

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Solution

The fourth proportional to 144,911.44, 199,977.78 and 81,249.22 is: 112,123.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,911.44 : 199,977.78 = 81,249.22 : x
  2. Step 2: Convert to fraction form
    144,911.44/199,977.78 = 81,249.22/x
  3. Step 3: Cross multiply
    144,911.44x = 199,977.78 × 81,249.22
  4. Step 4: Simplify right side
    144,911.44x = 16,248,038,642.33
  5. Step 5: Solve for x
    x = 16,248,038,642.33/144,911.44
  6. Step 6: Final answer
    x = 112,123.92

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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.