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Finding the Fourth Proportional to 101,871.30, 140,724.16 and 96,889.08

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Solution

The fourth proportional to 101,871.30, 140,724.16 and 96,889.08 is: 133,841.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,871.30 : 140,724.16 = 96,889.08 : x
  2. Step 2: Convert to fraction form
    101,871.30/140,724.16 = 96,889.08/x
  3. Step 3: Cross multiply
    101,871.30x = 140,724.16 × 96,889.08
  4. Step 4: Simplify right side
    101,871.30x = 13,634,634,396.17
  5. Step 5: Solve for x
    x = 13,634,634,396.17/101,871.30
  6. Step 6: Final answer
    x = 133,841.76

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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.