Home / 197,730.38-272,879.88-121,258.28

Finding the Fourth Proportional to 197,730.38, 272,879.88 and 121,258.28

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Solution

The fourth proportional to 197,730.38, 272,879.88 and 121,258.28 is: 167,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,730.38 : 272,879.88 = 121,258.28 : x
  2. Step 2: Convert to fraction form
    197,730.38/272,879.88 = 121,258.28/x
  3. Step 3: Cross multiply
    197,730.38x = 272,879.88 × 121,258.28
  4. Step 4: Simplify right side
    197,730.38x = 33,088,944,895.41
  5. Step 5: Solve for x
    x = 33,088,944,895.41/197,730.38
  6. Step 6: Final answer
    x = 167,343.76

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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.