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Finding the Fourth Proportional to 102,935.80, 154,365.30 and 40,593.40

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Solution

The fourth proportional to 102,935.80, 154,365.30 and 40,593.40 is: 60,874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,935.80 : 154,365.30 = 40,593.40 : x
  2. Step 2: Convert to fraction form
    102,935.80/154,365.30 = 40,593.40/x
  3. Step 3: Cross multiply
    102,935.80x = 154,365.30 × 40,593.40
  4. Step 4: Simplify right side
    102,935.80x = 6,266,212,369.02
  5. Step 5: Solve for x
    x = 6,266,212,369.02/102,935.80
  6. Step 6: Final answer
    x = 60,874.96

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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.