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Finding the Fourth Proportional to 102,979.62, 154,492.70 and 55,593.70

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Solution

The fourth proportional to 102,979.62, 154,492.70 and 55,593.70 is: 83,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,979.62 : 154,492.70 = 55,593.70 : x
  2. Step 2: Convert to fraction form
    102,979.62/154,492.70 = 55,593.70/x
  3. Step 3: Cross multiply
    102,979.62x = 154,492.70 × 55,593.70
  4. Step 4: Simplify right side
    102,979.62x = 8,588,820,151.79
  5. Step 5: Solve for x
    x = 8,588,820,151.79/102,979.62
  6. Step 6: Final answer
    x = 83,403.11

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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.