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Finding the Fourth Proportional to 102,994.20, 154,376.10 and 58,642.20

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Solution

The fourth proportional to 102,994.20, 154,376.10 and 58,642.20 is: 87,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,994.20 : 154,376.10 = 58,642.20 : x
  2. Step 2: Convert to fraction form
    102,994.20/154,376.10 = 58,642.20/x
  3. Step 3: Cross multiply
    102,994.20x = 154,376.10 × 58,642.20
  4. Step 4: Simplify right side
    102,994.20x = 9,052,954,131.42
  5. Step 5: Solve for x
    x = 9,052,954,131.42/102,994.20
  6. Step 6: Final answer
    x = 87,897.71

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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.