Home / 197,097.93-272,034.72-128,997.18

Finding the Fourth Proportional to 197,097.93, 272,034.72 and 128,997.18

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Solution

The fourth proportional to 197,097.93, 272,034.72 and 128,997.18 is: 178,042.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,097.93 : 272,034.72 = 128,997.18 : x
  2. Step 2: Convert to fraction form
    197,097.93/272,034.72 = 128,997.18/x
  3. Step 3: Cross multiply
    197,097.93x = 272,034.72 × 128,997.18
  4. Step 4: Simplify right side
    197,097.93x = 35,091,711,742.09
  5. Step 5: Solve for x
    x = 35,091,711,742.09/197,097.93
  6. Step 6: Final answer
    x = 178,042.01

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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.