Home / 198,580.48-297,703.30-86,176.02

Finding the Fourth Proportional to 198,580.48, 297,703.30 and 86,176.02

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Solution

The fourth proportional to 198,580.48, 297,703.30 and 86,176.02 is: 129,191.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,580.48 : 297,703.30 = 86,176.02 : x
  2. Step 2: Convert to fraction form
    198,580.48/297,703.30 = 86,176.02/x
  3. Step 3: Cross multiply
    198,580.48x = 297,703.30 × 86,176.02
  4. Step 4: Simplify right side
    198,580.48x = 25,654,885,723.38
  5. Step 5: Solve for x
    x = 25,654,885,723.38/198,580.48
  6. Step 6: Final answer
    x = 129,191.38

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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.