Home / 197,141.41-272,145.97-115,458.30

Finding the Fourth Proportional to 197,141.41, 272,145.97 and 115,458.30

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Solution

The fourth proportional to 197,141.41, 272,145.97 and 115,458.30 is: 159,385.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,141.41 : 272,145.97 = 115,458.30 : x
  2. Step 2: Convert to fraction form
    197,141.41/272,145.97 = 115,458.30/x
  3. Step 3: Cross multiply
    197,141.41x = 272,145.97 × 115,458.30
  4. Step 4: Simplify right side
    197,141.41x = 31,421,510,470.76
  5. Step 5: Solve for x
    x = 31,421,510,470.76/197,141.41
  6. Step 6: Final answer
    x = 159,385.64

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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.