Home / 197,187.78-272,081.52-112,303.02

Finding the Fourth Proportional to 197,187.78, 272,081.52 and 112,303.02

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Solution

The fourth proportional to 197,187.78, 272,081.52 and 112,303.02 is: 154,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,187.78 : 272,081.52 = 112,303.02 : x
  2. Step 2: Convert to fraction form
    197,187.78/272,081.52 = 112,303.02/x
  3. Step 3: Cross multiply
    197,187.78x = 272,081.52 × 112,303.02
  4. Step 4: Simplify right side
    197,187.78x = 30,555,576,382.19
  5. Step 5: Solve for x
    x = 30,555,576,382.19/197,187.78
  6. Step 6: Final answer
    x = 154,956.74

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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.