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Finding the Fourth Proportional to 100,299.60, 138,300.01 and 63,952.54

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Solution

The fourth proportional to 100,299.60, 138,300.01 and 63,952.54 is: 88,182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,299.60 : 138,300.01 = 63,952.54 : x
  2. Step 2: Convert to fraction form
    100,299.60/138,300.01 = 63,952.54/x
  3. Step 3: Cross multiply
    100,299.60x = 138,300.01 × 63,952.54
  4. Step 4: Simplify right side
    100,299.60x = 8,844,636,415.89
  5. Step 5: Solve for x
    x = 8,844,636,415.89/100,299.60
  6. Step 6: Final answer
    x = 88,182.17

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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.