Home / 155,919.84-215,267.76-108,156.48

Finding the Fourth Proportional to 155,919.84, 215,267.76 and 108,156.48

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Solution

The fourth proportional to 155,919.84, 215,267.76 and 108,156.48 is: 149,324.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,919.84 : 215,267.76 = 108,156.48 : x
  2. Step 2: Convert to fraction form
    155,919.84/215,267.76 = 108,156.48/x
  3. Step 3: Cross multiply
    155,919.84x = 215,267.76 × 108,156.48
  4. Step 4: Simplify right side
    155,919.84x = 23,282,603,179.08
  5. Step 5: Solve for x
    x = 23,282,603,179.08/155,919.84
  6. Step 6: Final answer
    x = 149,324.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.