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Finding the Fourth Proportional to 88,218.40, 132,327.60 and 76,813.60

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Solution

The fourth proportional to 88,218.40, 132,327.60 and 76,813.60 is: 115,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,218.40 : 132,327.60 = 76,813.60 : x
  2. Step 2: Convert to fraction form
    88,218.40/132,327.60 = 76,813.60/x
  3. Step 3: Cross multiply
    88,218.40x = 132,327.60 × 76,813.60
  4. Step 4: Simplify right side
    88,218.40x = 10,164,559,335.36
  5. Step 5: Solve for x
    x = 10,164,559,335.36/88,218.40
  6. Step 6: Final answer
    x = 115,220.40

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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.