Home / 197,640.81-272,743.07-106,996.13

Finding the Fourth Proportional to 197,640.81, 272,743.07 and 106,996.13

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Solution

The fourth proportional to 197,640.81, 272,743.07 and 106,996.13 is: 147,653.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,640.81 : 272,743.07 = 106,996.13 : x
  2. Step 2: Convert to fraction form
    197,640.81/272,743.07 = 106,996.13/x
  3. Step 3: Cross multiply
    197,640.81x = 272,743.07 × 106,996.13
  4. Step 4: Simplify right side
    197,640.81x = 29,182,451,075.62
  5. Step 5: Solve for x
    x = 29,182,451,075.62/197,640.81
  6. Step 6: Final answer
    x = 147,653.97

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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.