Home / 189,284.66-261,215.97-103,243.67

Finding the Fourth Proportional to 189,284.66, 261,215.97 and 103,243.67

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Solution

The fourth proportional to 189,284.66, 261,215.97 and 103,243.67 is: 142,477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,284.66 : 261,215.97 = 103,243.67 : x
  2. Step 2: Convert to fraction form
    189,284.66/261,215.97 = 103,243.67/x
  3. Step 3: Cross multiply
    189,284.66x = 261,215.97 × 103,243.67
  4. Step 4: Simplify right side
    189,284.66x = 26,968,894,691.73
  5. Step 5: Solve for x
    x = 26,968,894,691.73/189,284.66
  6. Step 6: Final answer
    x = 142,477.97

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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.