Home / 148,856.36-205,409.86-85,179.56

Finding the Fourth Proportional to 148,856.36, 205,409.86 and 85,179.56

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Solution

The fourth proportional to 148,856.36, 205,409.86 and 85,179.56 is: 117,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,856.36 : 205,409.86 = 85,179.56 : x
  2. Step 2: Convert to fraction form
    148,856.36/205,409.86 = 85,179.56/x
  3. Step 3: Cross multiply
    148,856.36x = 205,409.86 × 85,179.56
  4. Step 4: Simplify right side
    148,856.36x = 17,496,721,494.46
  5. Step 5: Solve for x
    x = 17,496,721,494.46/148,856.36
  6. Step 6: Final answer
    x = 117,540.97

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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.