Home / 144,876.07-199,928.17-81,212.50

Finding the Fourth Proportional to 144,876.07, 199,928.17 and 81,212.50

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Solution

The fourth proportional to 144,876.07, 199,928.17 and 81,212.50 is: 112,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,876.07 : 199,928.17 = 81,212.50 : x
  2. Step 2: Convert to fraction form
    144,876.07/199,928.17 = 81,212.50/x
  3. Step 3: Cross multiply
    144,876.07x = 199,928.17 × 81,212.50
  4. Step 4: Simplify right side
    144,876.07x = 16,236,665,803.27
  5. Step 5: Solve for x
    x = 16,236,665,803.27/144,876.07
  6. Step 6: Final answer
    x = 112,072.79

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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.