Home / 144,882.07-199,936.45-81,218.50

Finding the Fourth Proportional to 144,882.07, 199,936.45 and 81,218.50

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Solution

The fourth proportional to 144,882.07, 199,936.45 and 81,218.50 is: 112,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,882.07 : 199,936.45 = 81,218.50 : x
  2. Step 2: Convert to fraction form
    144,882.07/199,936.45 = 81,218.50/x
  3. Step 3: Cross multiply
    144,882.07x = 199,936.45 × 81,218.50
  4. Step 4: Simplify right side
    144,882.07x = 16,238,538,166.01
  5. Step 5: Solve for x
    x = 16,238,538,166.01/144,882.07
  6. Step 6: Final answer
    x = 112,081.08

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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.