Home / 104,078.56-143,645.40-63,814.48

Finding the Fourth Proportional to 104,078.56, 143,645.40 and 63,814.48

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Solution

The fourth proportional to 104,078.56, 143,645.40 and 63,814.48 is: 88,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,078.56 : 143,645.40 = 63,814.48 : x
  2. Step 2: Convert to fraction form
    104,078.56/143,645.40 = 63,814.48/x
  3. Step 3: Cross multiply
    104,078.56x = 143,645.40 × 63,814.48
  4. Step 4: Simplify right side
    104,078.56x = 9,166,656,505.39
  5. Step 5: Solve for x
    x = 9,166,656,505.39/104,078.56
  6. Step 6: Final answer
    x = 88,074.40

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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.