Home / 103,198.93-154,798.63-28,320.10

Finding the Fourth Proportional to 103,198.93, 154,798.63 and 28,320.10

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Solution

The fourth proportional to 103,198.93, 154,798.63 and 28,320.10 is: 42,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,198.93 : 154,798.63 = 28,320.10 : x
  2. Step 2: Convert to fraction form
    103,198.93/154,798.63 = 28,320.10/x
  3. Step 3: Cross multiply
    103,198.93x = 154,798.63 × 28,320.10
  4. Step 4: Simplify right side
    103,198.93x = 4,383,912,223.67
  5. Step 5: Solve for x
    x = 4,383,912,223.67/103,198.93
  6. Step 6: Final answer
    x = 42,480.21

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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.