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Finding the Fourth Proportional to 144,887.88, 199,945.14 and 81,225.69

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Solution

The fourth proportional to 144,887.88, 199,945.14 and 81,225.69 is: 112,091.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,887.88 : 199,945.14 = 81,225.69 : x
  2. Step 2: Convert to fraction form
    144,887.88/199,945.14 = 81,225.69/x
  3. Step 3: Cross multiply
    144,887.88x = 199,945.14 × 81,225.69
  4. Step 4: Simplify right side
    144,887.88x = 16,240,681,958.65
  5. Step 5: Solve for x
    x = 16,240,681,958.65/144,887.88
  6. Step 6: Final answer
    x = 112,091.38

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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.