Home / 101,218.14-139,670.43-58,768.38

Finding the Fourth Proportional to 101,218.14, 139,670.43 and 58,768.38

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Solution

The fourth proportional to 101,218.14, 139,670.43 and 58,768.38 is: 81,094.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,218.14 : 139,670.43 = 58,768.38 : x
  2. Step 2: Convert to fraction form
    101,218.14/139,670.43 = 58,768.38/x
  3. Step 3: Cross multiply
    101,218.14x = 139,670.43 × 58,768.38
  4. Step 4: Simplify right side
    101,218.14x = 8,208,204,905.00
  5. Step 5: Solve for x
    x = 8,208,204,905.00/101,218.14
  6. Step 6: Final answer
    x = 81,094.21

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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.