Home / 88,305.40-132,458.10-78,682.60

Finding the Fourth Proportional to 88,305.40, 132,458.10 and 78,682.60

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Solution

The fourth proportional to 88,305.40, 132,458.10 and 78,682.60 is: 118,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,305.40 : 132,458.10 = 78,682.60 : x
  2. Step 2: Convert to fraction form
    88,305.40/132,458.10 = 78,682.60/x
  3. Step 3: Cross multiply
    88,305.40x = 132,458.10 × 78,682.60
  4. Step 4: Simplify right side
    88,305.40x = 10,422,147,699.06
  5. Step 5: Solve for x
    x = 10,422,147,699.06/88,305.40
  6. Step 6: Final answer
    x = 118,023.90

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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.