Home / 197,204.87-272,047.59-129,191.90

Finding the Fourth Proportional to 197,204.87, 272,047.59 and 129,191.90

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Solution

The fourth proportional to 197,204.87, 272,047.59 and 129,191.90 is: 178,222.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,204.87 : 272,047.59 = 129,191.90 : x
  2. Step 2: Convert to fraction form
    197,204.87/272,047.59 = 129,191.90/x
  3. Step 3: Cross multiply
    197,204.87x = 272,047.59 × 129,191.90
  4. Step 4: Simplify right side
    197,204.87x = 35,146,345,284.17
  5. Step 5: Solve for x
    x = 35,146,345,284.17/197,204.87
  6. Step 6: Final answer
    x = 178,222.51

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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.