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Finding the Fourth Proportional to 103,353.30, 154,637.85 and 61,255.98

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Solution

The fourth proportional to 103,353.30, 154,637.85 and 61,255.98 is: 91,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,353.30 : 154,637.85 = 61,255.98 : x
  2. Step 2: Convert to fraction form
    103,353.30/154,637.85 = 61,255.98/x
  3. Step 3: Cross multiply
    103,353.30x = 154,637.85 × 61,255.98
  4. Step 4: Simplify right side
    103,353.30x = 9,472,493,046.84
  5. Step 5: Solve for x
    x = 9,472,493,046.84/103,353.30
  6. Step 6: Final answer
    x = 91,651.58

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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.