Home / 71,188.11-106,788.32-18,597.60

Finding the Fourth Proportional to 71,188.11, 106,788.32 and 18,597.60

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Solution

The fourth proportional to 71,188.11, 106,788.32 and 18,597.60 is: 27,898.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,188.11 : 106,788.32 = 18,597.60 : x
  2. Step 2: Convert to fraction form
    71,188.11/106,788.32 = 18,597.60/x
  3. Step 3: Cross multiply
    71,188.11x = 106,788.32 × 18,597.60
  4. Step 4: Simplify right side
    71,188.11x = 1,986,005,833.10
  5. Step 5: Solve for x
    x = 1,986,005,833.10/71,188.11
  6. Step 6: Final answer
    x = 27,898.00

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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.