Home / 109,079.45-163,520.75-75,815.18

Finding the Fourth Proportional to 109,079.45, 163,520.75 and 75,815.18

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Solution

The fourth proportional to 109,079.45, 163,520.75 and 75,815.18 is: 113,654.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,079.45 : 163,520.75 = 75,815.18 : x
  2. Step 2: Convert to fraction form
    109,079.45/163,520.75 = 75,815.18/x
  3. Step 3: Cross multiply
    109,079.45x = 163,520.75 × 75,815.18
  4. Step 4: Simplify right side
    109,079.45x = 12,397,355,094.99
  5. Step 5: Solve for x
    x = 12,397,355,094.99/109,079.45
  6. Step 6: Final answer
    x = 113,654.36

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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.