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Finding the Fourth Proportional to 101,138.40, 151,707.60 and 63,740.70

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Solution

The fourth proportional to 101,138.40, 151,707.60 and 63,740.70 is: 95,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,138.40 : 151,707.60 = 63,740.70 : x
  2. Step 2: Convert to fraction form
    101,138.40/151,707.60 = 63,740.70/x
  3. Step 3: Cross multiply
    101,138.40x = 151,707.60 × 63,740.70
  4. Step 4: Simplify right side
    101,138.40x = 9,669,948,619.32
  5. Step 5: Solve for x
    x = 9,669,948,619.32/101,138.40
  6. Step 6: Final answer
    x = 95,611.05

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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.