Home / 102,396.92-141,308.39-57,077.77

Finding the Fourth Proportional to 102,396.92, 141,308.39 and 57,077.77

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Solution

The fourth proportional to 102,396.92, 141,308.39 and 57,077.77 is: 78,767.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,396.92 : 141,308.39 = 57,077.77 : x
  2. Step 2: Convert to fraction form
    102,396.92/141,308.39 = 57,077.77/x
  3. Step 3: Cross multiply
    102,396.92x = 141,308.39 × 57,077.77
  4. Step 4: Simplify right side
    102,396.92x = 8,065,566,791.56
  5. Step 5: Solve for x
    x = 8,065,566,791.56/102,396.92
  6. Step 6: Final answer
    x = 78,767.67

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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.