Home / 198,677.26-298,019.40-86,357.53

Finding the Fourth Proportional to 198,677.26, 298,019.40 and 86,357.53

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Solution

The fourth proportional to 198,677.26, 298,019.40 and 86,357.53 is: 129,537.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,677.26 : 298,019.40 = 86,357.53 : x
  2. Step 2: Convert to fraction form
    198,677.26/298,019.40 = 86,357.53/x
  3. Step 3: Cross multiply
    198,677.26x = 298,019.40 × 86,357.53
  4. Step 4: Simplify right side
    198,677.26x = 25,736,219,276.08
  5. Step 5: Solve for x
    x = 25,736,219,276.08/198,677.26
  6. Step 6: Final answer
    x = 129,537.82

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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.