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Finding the Fourth Proportional to 104,133.76, 143,718.72 and 63,871.36

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Solution

The fourth proportional to 104,133.76, 143,718.72 and 63,871.36 is: 88,151.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,133.76 : 143,718.72 = 63,871.36 : x
  2. Step 2: Convert to fraction form
    104,133.76/143,718.72 = 63,871.36/x
  3. Step 3: Cross multiply
    104,133.76x = 143,718.72 × 63,871.36
  4. Step 4: Simplify right side
    104,133.76x = 9,179,510,103.86
  5. Step 5: Solve for x
    x = 9,179,510,103.86/104,133.76
  6. Step 6: Final answer
    x = 88,151.14

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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.