Home / 198,857.89-297,700.73-131,265.21

Finding the Fourth Proportional to 198,857.89, 297,700.73 and 131,265.21

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Solution

The fourth proportional to 198,857.89, 297,700.73 and 131,265.21 is: 196,510.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,857.89 : 297,700.73 = 131,265.21 : x
  2. Step 2: Convert to fraction form
    198,857.89/297,700.73 = 131,265.21/x
  3. Step 3: Cross multiply
    198,857.89x = 297,700.73 × 131,265.21
  4. Step 4: Simplify right side
    198,857.89x = 39,077,748,840.60
  5. Step 5: Solve for x
    x = 39,077,748,840.60/198,857.89
  6. Step 6: Final answer
    x = 196,510.93

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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.