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Finding the Fourth Proportional to 101,252.40, 151,878.60 and 71,703.60

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Solution

The fourth proportional to 101,252.40, 151,878.60 and 71,703.60 is: 107,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,252.40 : 151,878.60 = 71,703.60 : x
  2. Step 2: Convert to fraction form
    101,252.40/151,878.60 = 71,703.60/x
  3. Step 3: Cross multiply
    101,252.40x = 151,878.60 × 71,703.60
  4. Step 4: Simplify right side
    101,252.40x = 10,890,242,382.96
  5. Step 5: Solve for x
    x = 10,890,242,382.96/101,252.40
  6. Step 6: Final answer
    x = 107,555.40

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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.