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Finding the Fourth Proportional to 103,313.85, 154,950.37 and 28,414.67

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Solution

The fourth proportional to 103,313.85, 154,950.37 and 28,414.67 is: 42,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,313.85 : 154,950.37 = 28,414.67 : x
  2. Step 2: Convert to fraction form
    103,313.85/154,950.37 = 28,414.67/x
  3. Step 3: Cross multiply
    103,313.85x = 154,950.37 × 28,414.67
  4. Step 4: Simplify right side
    103,313.85x = 4,402,862,784.14
  5. Step 5: Solve for x
    x = 4,402,862,784.14/103,313.85
  6. Step 6: Final answer
    x = 42,616.39

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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.