Home / 88,022.20-132,033.30-77,999.80

Finding the Fourth Proportional to 88,022.20, 132,033.30 and 77,999.80

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Solution

The fourth proportional to 88,022.20, 132,033.30 and 77,999.80 is: 116,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,022.20 : 132,033.30 = 77,999.80 : x
  2. Step 2: Convert to fraction form
    88,022.20/132,033.30 = 77,999.80/x
  3. Step 3: Cross multiply
    88,022.20x = 132,033.30 × 77,999.80
  4. Step 4: Simplify right side
    88,022.20x = 10,298,570,993.34
  5. Step 5: Solve for x
    x = 10,298,570,993.34/88,022.20
  6. Step 6: Final answer
    x = 116,999.70

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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.