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Finding the Fourth Proportional to 104,008.67, 143,542.43 and 63,749.19

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Solution

The fourth proportional to 104,008.67, 143,542.43 and 63,749.19 is: 87,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,008.67 : 143,542.43 = 63,749.19 : x
  2. Step 2: Convert to fraction form
    104,008.67/143,542.43 = 63,749.19/x
  3. Step 3: Cross multiply
    104,008.67x = 143,542.43 × 63,749.19
  4. Step 4: Simplify right side
    104,008.67x = 9,150,713,324.39
  5. Step 5: Solve for x
    x = 9,150,713,324.39/104,008.67
  6. Step 6: Final answer
    x = 87,980.30

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1.5x scale

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.