Home / 197,631.77-272,731.78-106,987.66

Finding the Fourth Proportional to 197,631.77, 272,731.78 and 106,987.66

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Solution

The fourth proportional to 197,631.77, 272,731.78 and 106,987.66 is: 147,642.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,631.77 : 272,731.78 = 106,987.66 : x
  2. Step 2: Convert to fraction form
    197,631.77/272,731.78 = 106,987.66/x
  3. Step 3: Cross multiply
    197,631.77x = 272,731.78 × 106,987.66
  4. Step 4: Simplify right side
    197,631.77x = 29,178,935,367.96
  5. Step 5: Solve for x
    x = 29,178,935,367.96/197,631.77
  6. Step 6: Final answer
    x = 147,642.94

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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.