Home / 102,747.71-141,791.31-57,425.67

Finding the Fourth Proportional to 102,747.71, 141,791.31 and 57,425.67

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Solution

The fourth proportional to 102,747.71, 141,791.31 and 57,425.67 is: 79,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,747.71 : 141,791.31 = 57,425.67 : x
  2. Step 2: Convert to fraction form
    102,747.71/141,791.31 = 57,425.67/x
  3. Step 3: Cross multiply
    102,747.71x = 141,791.31 × 57,425.67
  4. Step 4: Simplify right side
    102,747.71x = 8,142,460,976.93
  5. Step 5: Solve for x
    x = 8,142,460,976.93/102,747.71
  6. Step 6: Final answer
    x = 79,247.13

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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.