Home / 198,065.04-297,065.72-57,790.80

Finding the Fourth Proportional to 198,065.04, 297,065.72 and 57,790.80

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Solution

The fourth proportional to 198,065.04, 297,065.72 and 57,790.80 is: 86,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,065.04 : 297,065.72 = 57,790.80 : x
  2. Step 2: Convert to fraction form
    198,065.04/297,065.72 = 57,790.80/x
  3. Step 3: Cross multiply
    198,065.04x = 297,065.72 × 57,790.80
  4. Step 4: Simplify right side
    198,065.04x = 17,167,665,611.38
  5. Step 5: Solve for x
    x = 17,167,665,611.38/198,065.04
  6. Step 6: Final answer
    x = 86,676.91

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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.