Home / 103,198.87-154,798.47-28,320.04

Finding the Fourth Proportional to 103,198.87, 154,798.47 and 28,320.04

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Solution

The fourth proportional to 103,198.87, 154,798.47 and 28,320.04 is: 42,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,198.87 : 154,798.47 = 28,320.04 : x
  2. Step 2: Convert to fraction form
    103,198.87/154,798.47 = 28,320.04/x
  3. Step 3: Cross multiply
    103,198.87x = 154,798.47 × 28,320.04
  4. Step 4: Simplify right side
    103,198.87x = 4,383,898,862.34
  5. Step 5: Solve for x
    x = 4,383,898,862.34/103,198.87
  6. Step 6: Final answer
    x = 42,480.11

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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.