Home / 144,734.56-199,731.36-81,071.84

Finding the Fourth Proportional to 144,734.56, 199,731.36 and 81,071.84

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Solution

The fourth proportional to 144,734.56, 199,731.36 and 81,071.84 is: 111,877.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,734.56 : 199,731.36 = 81,071.84 : x
  2. Step 2: Convert to fraction form
    144,734.56/199,731.36 = 81,071.84/x
  3. Step 3: Cross multiply
    144,734.56x = 199,731.36 × 81,071.84
  4. Step 4: Simplify right side
    144,734.56x = 16,192,588,860.90
  5. Step 5: Solve for x
    x = 16,192,588,860.90/144,734.56
  6. Step 6: Final answer
    x = 111,877.83

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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.