Home / 136,359.84-188,234.64-91,673.76

Finding the Fourth Proportional to 136,359.84, 188,234.64 and 91,673.76

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Solution

The fourth proportional to 136,359.84, 188,234.64 and 91,673.76 is: 126,548.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,359.84 : 188,234.64 = 91,673.76 : x
  2. Step 2: Convert to fraction form
    136,359.84/188,234.64 = 91,673.76/x
  3. Step 3: Cross multiply
    136,359.84x = 188,234.64 × 91,673.76
  4. Step 4: Simplify right side
    136,359.84x = 17,256,177,211.05
  5. Step 5: Solve for x
    x = 17,256,177,211.05/136,359.84
  6. Step 6: Final answer
    x = 126,548.82

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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.