Home / 148,370.31-204,715.49-87,930.54

Finding the Fourth Proportional to 148,370.31, 204,715.49 and 87,930.54

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Solution

The fourth proportional to 148,370.31, 204,715.49 and 87,930.54 is: 121,323.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,370.31 : 204,715.49 = 87,930.54 : x
  2. Step 2: Convert to fraction form
    148,370.31/204,715.49 = 87,930.54/x
  3. Step 3: Cross multiply
    148,370.31x = 204,715.49 × 87,930.54
  4. Step 4: Simplify right side
    148,370.31x = 18,000,743,142.41
  5. Step 5: Solve for x
    x = 18,000,743,142.41/148,370.31
  6. Step 6: Final answer
    x = 121,323.08

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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.