Home / 109,200.50-163,801.65-30,320.87

Finding the Fourth Proportional to 109,200.50, 163,801.65 and 30,320.87

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Solution

The fourth proportional to 109,200.50, 163,801.65 and 30,320.87 is: 45,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,200.50 : 163,801.65 = 30,320.87 : x
  2. Step 2: Convert to fraction form
    109,200.50/163,801.65 = 30,320.87/x
  3. Step 3: Cross multiply
    109,200.50x = 163,801.65 × 30,320.87
  4. Step 4: Simplify right side
    109,200.50x = 4,966,608,535.44
  5. Step 5: Solve for x
    x = 4,966,608,535.44/109,200.50
  6. Step 6: Final answer
    x = 45,481.55

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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.