Home / 101,119.16-139,591.68-58,670.30

Finding the Fourth Proportional to 101,119.16, 139,591.68 and 58,670.30

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Solution

The fourth proportional to 101,119.16, 139,591.68 and 58,670.30 is: 80,992.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,119.16 : 139,591.68 = 58,670.30 : x
  2. Step 2: Convert to fraction form
    101,119.16/139,591.68 = 58,670.30/x
  3. Step 3: Cross multiply
    101,119.16x = 139,591.68 × 58,670.30
  4. Step 4: Simplify right side
    101,119.16x = 8,189,885,743.10
  5. Step 5: Solve for x
    x = 8,189,885,743.10/101,119.16
  6. Step 6: Final answer
    x = 80,992.42

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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.