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Finding the Fourth Proportional to 76,366.40, 114,452.40 and 68,007.20

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Solution

The fourth proportional to 76,366.40, 114,452.40 and 68,007.20 is: 101,924.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,366.40 : 114,452.40 = 68,007.20 : x
  2. Step 2: Convert to fraction form
    76,366.40/114,452.40 = 68,007.20/x
  3. Step 3: Cross multiply
    76,366.40x = 114,452.40 × 68,007.20
  4. Step 4: Simplify right side
    76,366.40x = 7,783,587,257.28
  5. Step 5: Solve for x
    x = 7,783,587,257.28/76,366.40
  6. Step 6: Final answer
    x = 101,924.24

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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.