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Finding the Fourth Proportional to 103,230.87, 154,846.02 and 28,351.09

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Solution

The fourth proportional to 103,230.87, 154,846.02 and 28,351.09 is: 42,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,230.87 : 154,846.02 = 28,351.09 : x
  2. Step 2: Convert to fraction form
    103,230.87/154,846.02 = 28,351.09/x
  3. Step 3: Cross multiply
    103,230.87x = 154,846.02 × 28,351.09
  4. Step 4: Simplify right side
    103,230.87x = 4,390,053,149.29
  5. Step 5: Solve for x
    x = 4,390,053,149.29/103,230.87
  6. Step 6: Final answer
    x = 42,526.55

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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.