Home / 88,219.40-132,329.10-76,814.60

Finding the Fourth Proportional to 88,219.40, 132,329.10 and 76,814.60

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Solution

The fourth proportional to 88,219.40, 132,329.10 and 76,814.60 is: 115,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,219.40 : 132,329.10 = 76,814.60 : x
  2. Step 2: Convert to fraction form
    88,219.40/132,329.10 = 76,814.60/x
  3. Step 3: Cross multiply
    88,219.40x = 132,329.10 × 76,814.60
  4. Step 4: Simplify right side
    88,219.40x = 10,164,806,884.86
  5. Step 5: Solve for x
    x = 10,164,806,884.86/88,219.40
  6. Step 6: Final answer
    x = 115,221.90

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1.5x scale

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.