Home / 88,268.80-132,403.20-81,529.60

Finding the Fourth Proportional to 88,268.80, 132,403.20 and 81,529.60

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Solution

The fourth proportional to 88,268.80, 132,403.20 and 81,529.60 is: 122,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,268.80 : 132,403.20 = 81,529.60 : x
  2. Step 2: Convert to fraction form
    88,268.80/132,403.20 = 81,529.60/x
  3. Step 3: Cross multiply
    88,268.80x = 132,403.20 × 81,529.60
  4. Step 4: Simplify right side
    88,268.80x = 10,794,779,934.72
  5. Step 5: Solve for x
    x = 10,794,779,934.72/88,268.80
  6. Step 6: Final answer
    x = 122,294.40

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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.