Home / 198,176.90-297,264.54-71,787.57

Finding the Fourth Proportional to 198,176.90, 297,264.54 and 71,787.57

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Solution

The fourth proportional to 198,176.90, 297,264.54 and 71,787.57 is: 107,681.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,176.90 : 297,264.54 = 71,787.57 : x
  2. Step 2: Convert to fraction form
    198,176.90/297,264.54 = 71,787.57/x
  3. Step 3: Cross multiply
    198,176.90x = 297,264.54 × 71,787.57
  4. Step 4: Simplify right side
    198,176.90x = 21,339,898,973.77
  5. Step 5: Solve for x
    x = 21,339,898,973.77/198,176.90
  6. Step 6: Final answer
    x = 107,681.06

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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.