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Finding the Fourth Proportional to 145,410.60, 217,847.10 and 82,895.40

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Solution

The fourth proportional to 145,410.60, 217,847.10 and 82,895.40 is: 124,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,410.60 : 217,847.10 = 82,895.40 : x
  2. Step 2: Convert to fraction form
    145,410.60/217,847.10 = 82,895.40/x
  3. Step 3: Cross multiply
    145,410.60x = 217,847.10 × 82,895.40
  4. Step 4: Simplify right side
    145,410.60x = 18,058,522,493.34
  5. Step 5: Solve for x
    x = 18,058,522,493.34/145,410.60
  6. Step 6: Final answer
    x = 124,189.86

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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.