Home / 198,379.12-297,529.76-58,100.08

Finding the Fourth Proportional to 198,379.12, 297,529.76 and 58,100.08

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Solution

The fourth proportional to 198,379.12, 297,529.76 and 58,100.08 is: 87,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,379.12 : 297,529.76 = 58,100.08 : x
  2. Step 2: Convert to fraction form
    198,379.12/297,529.76 = 58,100.08/x
  3. Step 3: Cross multiply
    198,379.12x = 297,529.76 × 58,100.08
  4. Step 4: Simplify right side
    198,379.12x = 17,286,502,858.38
  5. Step 5: Solve for x
    x = 17,286,502,858.38/198,379.12
  6. Step 6: Final answer
    x = 87,138.72

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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.