Home / 109,269.20-163,903.80-76,091.60

Finding the Fourth Proportional to 109,269.20, 163,903.80 and 76,091.60

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Solution

The fourth proportional to 109,269.20, 163,903.80 and 76,091.60 is: 114,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,269.20 : 163,903.80 = 76,091.60 : x
  2. Step 2: Convert to fraction form
    109,269.20/163,903.80 = 76,091.60/x
  3. Step 3: Cross multiply
    109,269.20x = 163,903.80 × 76,091.60
  4. Step 4: Simplify right side
    109,269.20x = 12,471,702,388.08
  5. Step 5: Solve for x
    x = 12,471,702,388.08/109,269.20
  6. Step 6: Final answer
    x = 114,137.40

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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.