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Finding the Fourth Proportional to 100,435.44, 150,702.60 and 71,042.16

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Solution

The fourth proportional to 100,435.44, 150,702.60 and 71,042.16 is: 106,598.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,435.44 : 150,702.60 = 71,042.16 : x
  2. Step 2: Convert to fraction form
    100,435.44/150,702.60 = 71,042.16/x
  3. Step 3: Cross multiply
    100,435.44x = 150,702.60 × 71,042.16
  4. Step 4: Simplify right side
    100,435.44x = 10,706,238,221.62
  5. Step 5: Solve for x
    x = 10,706,238,221.62/100,435.44
  6. Step 6: Final answer
    x = 106,598.21

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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.