Home / 198,675.45-297,325.76-122,742.81

Finding the Fourth Proportional to 198,675.45, 297,325.76 and 122,742.81

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Solution

The fourth proportional to 198,675.45, 297,325.76 and 122,742.81 is: 183,689.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,675.45 : 297,325.76 = 122,742.81 : x
  2. Step 2: Convert to fraction form
    198,675.45/297,325.76 = 122,742.81/x
  3. Step 3: Cross multiply
    198,675.45x = 297,325.76 × 122,742.81
  4. Step 4: Simplify right side
    198,675.45x = 36,494,598,654.07
  5. Step 5: Solve for x
    x = 36,494,598,654.07/198,675.45
  6. Step 6: Final answer
    x = 183,689.52

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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.