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Finding the Fourth Proportional to 101,354.62, 152,056.66 and 71,427.21

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Solution

The fourth proportional to 101,354.62, 152,056.66 and 71,427.21 is: 107,158.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,354.62 : 152,056.66 = 71,427.21 : x
  2. Step 2: Convert to fraction form
    101,354.62/152,056.66 = 71,427.21/x
  3. Step 3: Cross multiply
    101,354.62x = 152,056.66 × 71,427.21
  4. Step 4: Simplify right side
    101,354.62x = 10,860,982,225.44
  5. Step 5: Solve for x
    x = 10,860,982,225.44/101,354.62
  6. Step 6: Final answer
    x = 107,158.24

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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.