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Finding the Fourth Proportional to 138,173.60, 207,220.08 and 63,251.36

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Solution

The fourth proportional to 138,173.60, 207,220.08 and 63,251.36 is: 94,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,173.60 : 207,220.08 = 63,251.36 : x
  2. Step 2: Convert to fraction form
    138,173.60/207,220.08 = 63,251.36/x
  3. Step 3: Cross multiply
    138,173.60x = 207,220.08 × 63,251.36
  4. Step 4: Simplify right side
    138,173.60x = 13,106,951,879.31
  5. Step 5: Solve for x
    x = 13,106,951,879.31/138,173.60
  6. Step 6: Final answer
    x = 94,858.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.