Home / 148,947.71-205,546.86-85,285.49

Finding the Fourth Proportional to 148,947.71, 205,546.86 and 85,285.49

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Solution

The fourth proportional to 148,947.71, 205,546.86 and 85,285.49 is: 117,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,947.71 : 205,546.86 = 85,285.49 : x
  2. Step 2: Convert to fraction form
    148,947.71/205,546.86 = 85,285.49/x
  3. Step 3: Cross multiply
    148,947.71x = 205,546.86 × 85,285.49
  4. Step 4: Simplify right side
    148,947.71x = 17,530,163,645.33
  5. Step 5: Solve for x
    x = 17,530,163,645.33/148,947.71
  6. Step 6: Final answer
    x = 117,693.41

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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.