Home / 136,932.72-188,957.76-75,676.32

Finding the Fourth Proportional to 136,932.72, 188,957.76 and 75,676.32

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Solution

The fourth proportional to 136,932.72, 188,957.76 and 75,676.32 is: 104,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,932.72 : 188,957.76 = 75,676.32 : x
  2. Step 2: Convert to fraction form
    136,932.72/188,957.76 = 75,676.32/x
  3. Step 3: Cross multiply
    136,932.72x = 188,957.76 × 75,676.32
  4. Step 4: Simplify right side
    136,932.72x = 14,299,627,912.24
  5. Step 5: Solve for x
    x = 14,299,627,912.24/136,932.72
  6. Step 6: Final answer
    x = 104,428.13

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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.