Home / 103,200.12-154,800.34-28,321.28

Finding the Fourth Proportional to 103,200.12, 154,800.34 and 28,321.28

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Solution

The fourth proportional to 103,200.12, 154,800.34 and 28,321.28 is: 42,481.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,200.12 : 154,800.34 = 28,321.28 : x
  2. Step 2: Convert to fraction form
    103,200.12/154,800.34 = 28,321.28/x
  3. Step 3: Cross multiply
    103,200.12x = 154,800.34 × 28,321.28
  4. Step 4: Simplify right side
    103,200.12x = 4,384,143,773.24
  5. Step 5: Solve for x
    x = 4,384,143,773.24/103,200.12
  6. Step 6: Final answer
    x = 42,481.96

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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.