Home / 198,789.30-298,081.80-58,529.70

Finding the Fourth Proportional to 198,789.30, 298,081.80 and 58,529.70

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Solution

The fourth proportional to 198,789.30, 298,081.80 and 58,529.70 is: 87,764.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,789.30 : 298,081.80 = 58,529.70 : x
  2. Step 2: Convert to fraction form
    198,789.30/298,081.80 = 58,529.70/x
  3. Step 3: Cross multiply
    198,789.30x = 298,081.80 × 58,529.70
  4. Step 4: Simplify right side
    198,789.30x = 17,446,638,329.46
  5. Step 5: Solve for x
    x = 17,446,638,329.46/198,789.30
  6. Step 6: Final answer
    x = 87,764.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.