Home / 193,249.40-289,730.10-99,822.20

Finding the Fourth Proportional to 193,249.40, 289,730.10 and 99,822.20

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Solution

The fourth proportional to 193,249.40, 289,730.10 and 99,822.20 is: 149,658.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,249.40 : 289,730.10 = 99,822.20 : x
  2. Step 2: Convert to fraction form
    193,249.40/289,730.10 = 99,822.20/x
  3. Step 3: Cross multiply
    193,249.40x = 289,730.10 × 99,822.20
  4. Step 4: Simplify right side
    193,249.40x = 28,921,495,988.22
  5. Step 5: Solve for x
    x = 28,921,495,988.22/193,249.40
  6. Step 6: Final answer
    x = 149,658.92

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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.