Home / 197,664.76-272,774.04-107,020

Finding the Fourth Proportional to 197,664.76, 272,774.04 and 107,020

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Solution

The fourth proportional to 197,664.76, 272,774.04 and 107,020 is: 147,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,664.76 : 272,774.04 = 107,020 : x
  2. Step 2: Convert to fraction form
    197,664.76/272,774.04 = 107,020/x
  3. Step 3: Cross multiply
    197,664.76x = 272,774.04 × 107,020
  4. Step 4: Simplify right side
    197,664.76x = 29,192,277,760.80
  5. Step 5: Solve for x
    x = 29,192,277,760.80/197,664.76
  6. Step 6: Final answer
    x = 147,685.80

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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.