Home / 136,253.92-188,034-75,828.64

Finding the Fourth Proportional to 136,253.92, 188,034 and 75,828.64

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Solution

The fourth proportional to 136,253.92, 188,034 and 75,828.64 is: 104,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,253.92 : 188,034 = 75,828.64 : x
  2. Step 2: Convert to fraction form
    136,253.92/188,034 = 75,828.64/x
  3. Step 3: Cross multiply
    136,253.92x = 188,034 × 75,828.64
  4. Step 4: Simplify right side
    136,253.92x = 14,258,362,493.76
  5. Step 5: Solve for x
    x = 14,258,362,493.76/136,253.92
  6. Step 6: Final answer
    x = 104,645.52

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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.