Home / 88,648.20-132,972.30-87,870.60

Finding the Fourth Proportional to 88,648.20, 132,972.30 and 87,870.60

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Solution

The fourth proportional to 88,648.20, 132,972.30 and 87,870.60 is: 131,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,648.20 : 132,972.30 = 87,870.60 : x
  2. Step 2: Convert to fraction form
    88,648.20/132,972.30 = 87,870.60/x
  3. Step 3: Cross multiply
    88,648.20x = 132,972.30 × 87,870.60
  4. Step 4: Simplify right side
    88,648.20x = 11,684,355,784.38
  5. Step 5: Solve for x
    x = 11,684,355,784.38/88,648.20
  6. Step 6: Final answer
    x = 131,805.90

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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.