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Finding the Fourth Proportional to 103,066.62, 154,614.61 and 31,995.39

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Solution

The fourth proportional to 103,066.62, 154,614.61 and 31,995.39 is: 47,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,066.62 : 154,614.61 = 31,995.39 : x
  2. Step 2: Convert to fraction form
    103,066.62/154,614.61 = 31,995.39/x
  3. Step 3: Cross multiply
    103,066.62x = 154,614.61 × 31,995.39
  4. Step 4: Simplify right side
    103,066.62x = 4,946,955,366.45
  5. Step 5: Solve for x
    x = 4,946,955,366.45/103,066.62
  6. Step 6: Final answer
    x = 47,997.65

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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.