Home / 198,619.60-297,530.50-91,853.90

Finding the Fourth Proportional to 198,619.60, 297,530.50 and 91,853.90

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Solution

The fourth proportional to 198,619.60, 297,530.50 and 91,853.90 is: 137,596.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,619.60 : 297,530.50 = 91,853.90 : x
  2. Step 2: Convert to fraction form
    198,619.60/297,530.50 = 91,853.90/x
  3. Step 3: Cross multiply
    198,619.60x = 297,530.50 × 91,853.90
  4. Step 4: Simplify right side
    198,619.60x = 27,329,338,038.24
  5. Step 5: Solve for x
    x = 27,329,338,038.24/198,619.60
  6. Step 6: Final answer
    x = 137,596.38

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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.