Home / 144,856.58-199,914.38-81,206.68

Finding the Fourth Proportional to 144,856.58, 199,914.38 and 81,206.68

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Solution

The fourth proportional to 144,856.58, 199,914.38 and 81,206.68 is: 112,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,856.58 : 199,914.38 = 81,206.68 : x
  2. Step 2: Convert to fraction form
    144,856.58/199,914.38 = 81,206.68/x
  3. Step 3: Cross multiply
    144,856.58x = 199,914.38 × 81,206.68
  4. Step 4: Simplify right side
    144,856.58x = 16,234,383,084.06
  5. Step 5: Solve for x
    x = 16,234,383,084.06/144,856.58
  6. Step 6: Final answer
    x = 112,072.11

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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.