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Finding the Fourth Proportional to 173,309.70, 259,964.55 and 84,620.10

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Solution

The fourth proportional to 173,309.70, 259,964.55 and 84,620.10 is: 126,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,309.70 : 259,964.55 = 84,620.10 : x
  2. Step 2: Convert to fraction form
    173,309.70/259,964.55 = 84,620.10/x
  3. Step 3: Cross multiply
    173,309.70x = 259,964.55 × 84,620.10
  4. Step 4: Simplify right side
    173,309.70x = 21,998,226,217.46
  5. Step 5: Solve for x
    x = 21,998,226,217.46/173,309.70
  6. Step 6: Final answer
    x = 126,930.15

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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.