Home / 198,154.39-297,228.15-79,822.72

Finding the Fourth Proportional to 198,154.39, 297,228.15 and 79,822.72

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Solution

The fourth proportional to 198,154.39, 297,228.15 and 79,822.72 is: 119,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,154.39 : 297,228.15 = 79,822.72 : x
  2. Step 2: Convert to fraction form
    198,154.39/297,228.15 = 79,822.72/x
  3. Step 3: Cross multiply
    198,154.39x = 297,228.15 × 79,822.72
  4. Step 4: Simplify right side
    198,154.39x = 23,725,559,393.57
  5. Step 5: Solve for x
    x = 23,725,559,393.57/198,154.39
  6. Step 6: Final answer
    x = 119,732.70

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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.