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Finding the Fourth Proportional to 104,349.71, 143,842.82 and 63,988.63

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Solution

The fourth proportional to 104,349.71, 143,842.82 and 63,988.63 is: 88,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,349.71 : 143,842.82 = 63,988.63 : x
  2. Step 2: Convert to fraction form
    104,349.71/143,842.82 = 63,988.63/x
  3. Step 3: Cross multiply
    104,349.71x = 143,842.82 × 63,988.63
  4. Step 4: Simplify right side
    104,349.71x = 9,204,304,987.14
  5. Step 5: Solve for x
    x = 9,204,304,987.14/104,349.71
  6. Step 6: Final answer
    x = 88,206.33

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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.