Home / 136,546.69-188,357.26-85,470.76

Finding the Fourth Proportional to 136,546.69, 188,357.26 and 85,470.76

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Solution

The fourth proportional to 136,546.69, 188,357.26 and 85,470.76 is: 117,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,546.69 : 188,357.26 = 85,470.76 : x
  2. Step 2: Convert to fraction form
    136,546.69/188,357.26 = 85,470.76/x
  3. Step 3: Cross multiply
    136,546.69x = 188,357.26 × 85,470.76
  4. Step 4: Simplify right side
    136,546.69x = 16,099,036,794.58
  5. Step 5: Solve for x
    x = 16,099,036,794.58/136,546.69
  6. Step 6: Final answer
    x = 117,901.33

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1.5x scale

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.