Home / 88,310.20-132,465.30-78,633.40

Finding the Fourth Proportional to 88,310.20, 132,465.30 and 78,633.40

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Solution

The fourth proportional to 88,310.20, 132,465.30 and 78,633.40 is: 117,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,310.20 : 132,465.30 = 78,633.40 : x
  2. Step 2: Convert to fraction form
    88,310.20/132,465.30 = 78,633.40/x
  3. Step 3: Cross multiply
    88,310.20x = 132,465.30 × 78,633.40
  4. Step 4: Simplify right side
    88,310.20x = 10,416,196,921.02
  5. Step 5: Solve for x
    x = 10,416,196,921.02/88,310.20
  6. Step 6: Final answer
    x = 117,950.10

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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.