Home / 197,764.16-272,914.42-107,121.90

Finding the Fourth Proportional to 197,764.16, 272,914.42 and 107,121.90

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Solution

The fourth proportional to 197,764.16, 272,914.42 and 107,121.90 is: 147,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,764.16 : 272,914.42 = 107,121.90 : x
  2. Step 2: Convert to fraction form
    197,764.16/272,914.42 = 107,121.90/x
  3. Step 3: Cross multiply
    197,764.16x = 272,914.42 × 107,121.90
  4. Step 4: Simplify right side
    197,764.16x = 29,235,111,207.80
  5. Step 5: Solve for x
    x = 29,235,111,207.80/197,764.16
  6. Step 6: Final answer
    x = 147,828.16

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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.