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Finding the Fourth Proportional to 101,441.92, 139,994 and 56,119.14

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Solution

The fourth proportional to 101,441.92, 139,994 and 56,119.14 is: 77,446.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,441.92 : 139,994 = 56,119.14 : x
  2. Step 2: Convert to fraction form
    101,441.92/139,994 = 56,119.14/x
  3. Step 3: Cross multiply
    101,441.92x = 139,994 × 56,119.14
  4. Step 4: Simplify right side
    101,441.92x = 7,856,342,885.16
  5. Step 5: Solve for x
    x = 7,856,342,885.16/101,441.92
  6. Step 6: Final answer
    x = 77,446.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.