Home / 109,206.72-163,810.08-30,321.02

Finding the Fourth Proportional to 109,206.72, 163,810.08 and 30,321.02

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Solution

The fourth proportional to 109,206.72, 163,810.08 and 30,321.02 is: 45,481.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,206.72 : 163,810.08 = 30,321.02 : x
  2. Step 2: Convert to fraction form
    109,206.72/163,810.08 = 30,321.02/x
  3. Step 3: Cross multiply
    109,206.72x = 163,810.08 × 30,321.02
  4. Step 4: Simplify right side
    109,206.72x = 4,966,888,711.88
  5. Step 5: Solve for x
    x = 4,966,888,711.88/109,206.72
  6. Step 6: Final answer
    x = 45,481.53

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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.