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Finding the Fourth Proportional to 88,280.80, 132,226.80 and 76,616.80

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Solution

The fourth proportional to 88,280.80, 132,226.80 and 76,616.80 is: 114,756.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,280.80 : 132,226.80 = 76,616.80 : x
  2. Step 2: Convert to fraction form
    88,280.80/132,226.80 = 76,616.80/x
  3. Step 3: Cross multiply
    88,280.80x = 132,226.80 × 76,616.80
  4. Step 4: Simplify right side
    88,280.80x = 10,130,794,290.24
  5. Step 5: Solve for x
    x = 10,130,794,290.24/88,280.80
  6. Step 6: Final answer
    x = 114,756.48

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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.