Home / 197,643.81-272,747.20-106,999.13

Finding the Fourth Proportional to 197,643.81, 272,747.20 and 106,999.13

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Solution

The fourth proportional to 197,643.81, 272,747.20 and 106,999.13 is: 147,658.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,643.81 : 272,747.20 = 106,999.13 : x
  2. Step 2: Convert to fraction form
    197,643.81/272,747.20 = 106,999.13/x
  3. Step 3: Cross multiply
    197,643.81x = 272,747.20 × 106,999.13
  4. Step 4: Simplify right side
    197,643.81x = 29,183,713,109.94
  5. Step 5: Solve for x
    x = 29,183,713,109.94/197,643.81
  6. Step 6: Final answer
    x = 147,658.12

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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.