Home / 109,200.75-163,802.03-30,321.12

Finding the Fourth Proportional to 109,200.75, 163,802.03 and 30,321.12

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Solution

The fourth proportional to 109,200.75, 163,802.03 and 30,321.12 is: 45,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,200.75 : 163,802.03 = 30,321.12 : x
  2. Step 2: Convert to fraction form
    109,200.75/163,802.03 = 30,321.12/x
  3. Step 3: Cross multiply
    109,200.75x = 163,802.03 × 30,321.12
  4. Step 4: Simplify right side
    109,200.75x = 4,966,660,856.27
  5. Step 5: Solve for x
    x = 4,966,660,856.27/109,200.75
  6. Step 6: Final answer
    x = 45,481.93

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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.