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Finding the Fourth Proportional to 103,285.79, 154,930.37 and 35,819.94

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Solution

The fourth proportional to 103,285.79, 154,930.37 and 35,819.94 is: 53,730.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,285.79 : 154,930.37 = 35,819.94 : x
  2. Step 2: Convert to fraction form
    103,285.79/154,930.37 = 35,819.94/x
  3. Step 3: Cross multiply
    103,285.79x = 154,930.37 × 35,819.94
  4. Step 4: Simplify right side
    103,285.79x = 5,549,596,378.48
  5. Step 5: Solve for x
    x = 5,549,596,378.48/103,285.79
  6. Step 6: Final answer
    x = 53,730.50

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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.