Home / 158,440.13-218,647.38-91,372.13

Finding the Fourth Proportional to 158,440.13, 218,647.38 and 91,372.13

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Solution

The fourth proportional to 158,440.13, 218,647.38 and 91,372.13 is: 126,093.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,440.13 : 218,647.38 = 91,372.13 : x
  2. Step 2: Convert to fraction form
    158,440.13/218,647.38 = 91,372.13/x
  3. Step 3: Cross multiply
    158,440.13x = 218,647.38 × 91,372.13
  4. Step 4: Simplify right side
    158,440.13x = 19,978,276,829.52
  5. Step 5: Solve for x
    x = 19,978,276,829.52/158,440.13
  6. Step 6: Final answer
    x = 126,093.54

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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.