Home / 144,902.16-199,953.50-81,231.30

Finding the Fourth Proportional to 144,902.16, 199,953.50 and 81,231.30

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Solution

The fourth proportional to 144,902.16, 199,953.50 and 81,231.30 is: 112,092.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,902.16 : 199,953.50 = 81,231.30 : x
  2. Step 2: Convert to fraction form
    144,902.16/199,953.50 = 81,231.30/x
  3. Step 3: Cross multiply
    144,902.16x = 199,953.50 × 81,231.30
  4. Step 4: Simplify right side
    144,902.16x = 16,242,482,338.39
  5. Step 5: Solve for x
    x = 16,242,482,338.39/144,902.16
  6. Step 6: Final answer
    x = 112,092.76

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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.