Home / 205,098.45-307,155.60-99,794.40

Finding the Fourth Proportional to 205,098.45, 307,155.60 and 99,794.40

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Solution

The fourth proportional to 205,098.45, 307,155.60 and 99,794.40 is: 149,452.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,098.45 : 307,155.60 = 99,794.40 : x
  2. Step 2: Convert to fraction form
    205,098.45/307,155.60 = 99,794.40/x
  3. Step 3: Cross multiply
    205,098.45x = 307,155.60 × 99,794.40
  4. Step 4: Simplify right side
    205,098.45x = 30,652,408,808.64
  5. Step 5: Solve for x
    x = 30,652,408,808.64/205,098.45
  6. Step 6: Final answer
    x = 149,452.17

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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.