Home / 198,566.29-297,886.36-80,320.66

Finding the Fourth Proportional to 198,566.29, 297,886.36 and 80,320.66

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Solution

The fourth proportional to 198,566.29, 297,886.36 and 80,320.66 is: 120,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,566.29 : 297,886.36 = 80,320.66 : x
  2. Step 2: Convert to fraction form
    198,566.29/297,886.36 = 80,320.66/x
  3. Step 3: Cross multiply
    198,566.29x = 297,886.36 × 80,320.66
  4. Step 4: Simplify right side
    198,566.29x = 23,926,429,920.89
  5. Step 5: Solve for x
    x = 23,926,429,920.89/198,566.29
  6. Step 6: Final answer
    x = 120,495.93

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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.