Home / 88,219.60-132,329.40-86,761.60

Finding the Fourth Proportional to 88,219.60, 132,329.40 and 86,761.60

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Solution

The fourth proportional to 88,219.60, 132,329.40 and 86,761.60 is: 130,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,219.60 : 132,329.40 = 86,761.60 : x
  2. Step 2: Convert to fraction form
    88,219.60/132,329.40 = 86,761.60/x
  3. Step 3: Cross multiply
    88,219.60x = 132,329.40 × 86,761.60
  4. Step 4: Simplify right side
    88,219.60x = 11,481,110,471.04
  5. Step 5: Solve for x
    x = 11,481,110,471.04/88,219.60
  6. Step 6: Final answer
    x = 130,142.40

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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.