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Finding the Fourth Proportional to 101,254.40, 151,881.60 and 71,705.60

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Solution

The fourth proportional to 101,254.40, 151,881.60 and 71,705.60 is: 107,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,254.40 : 151,881.60 = 71,705.60 : x
  2. Step 2: Convert to fraction form
    101,254.40/151,881.60 = 71,705.60/x
  3. Step 3: Cross multiply
    101,254.40x = 151,881.60 × 71,705.60
  4. Step 4: Simplify right side
    101,254.40x = 10,890,761,256.96
  5. Step 5: Solve for x
    x = 10,890,761,256.96/101,254.40
  6. Step 6: Final answer
    x = 107,558.40

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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.