Home / 88,335.20-132,308.40-78,485.60

Finding the Fourth Proportional to 88,335.20, 132,308.40 and 78,485.60

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Solution

The fourth proportional to 88,335.20, 132,308.40 and 78,485.60 is: 117,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,335.20 : 132,308.40 = 78,485.60 : x
  2. Step 2: Convert to fraction form
    88,335.20/132,308.40 = 78,485.60/x
  3. Step 3: Cross multiply
    88,335.20x = 132,308.40 × 78,485.60
  4. Step 4: Simplify right side
    88,335.20x = 10,384,304,159.04
  5. Step 5: Solve for x
    x = 10,384,304,159.04/88,335.20
  6. Step 6: Final answer
    x = 117,555.68

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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.