Home / 144,984.56-200,078.70-81,320.96

Finding the Fourth Proportional to 144,984.56, 200,078.70 and 81,320.96

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Solution

The fourth proportional to 144,984.56, 200,078.70 and 81,320.96 is: 112,222.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,984.56 : 200,078.70 = 81,320.96 : x
  2. Step 2: Convert to fraction form
    144,984.56/200,078.70 = 81,320.96/x
  3. Step 3: Cross multiply
    144,984.56x = 200,078.70 × 81,320.96
  4. Step 4: Simplify right side
    144,984.56x = 16,270,591,959.55
  5. Step 5: Solve for x
    x = 16,270,591,959.55/144,984.56
  6. Step 6: Final answer
    x = 112,222.93

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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.