Home / 136,756.46-188,733.38-76,338.86

Finding the Fourth Proportional to 136,756.46, 188,733.38 and 76,338.86

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Solution

The fourth proportional to 136,756.46, 188,733.38 and 76,338.86 is: 105,352.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,756.46 : 188,733.38 = 76,338.86 : x
  2. Step 2: Convert to fraction form
    136,756.46/188,733.38 = 76,338.86/x
  3. Step 3: Cross multiply
    136,756.46x = 188,733.38 × 76,338.86
  4. Step 4: Simplify right side
    136,756.46x = 14,407,689,747.79
  5. Step 5: Solve for x
    x = 14,407,689,747.79/136,756.46
  6. Step 6: Final answer
    x = 105,352.90

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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.