Home / 103,680.45-155,520.68-33,610.05

Finding the Fourth Proportional to 103,680.45, 155,520.68 and 33,610.05

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Solution

The fourth proportional to 103,680.45, 155,520.68 and 33,610.05 is: 50,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680.45 : 155,520.68 = 33,610.05 : x
  2. Step 2: Convert to fraction form
    103,680.45/155,520.68 = 33,610.05/x
  3. Step 3: Cross multiply
    103,680.45x = 155,520.68 × 33,610.05
  4. Step 4: Simplify right side
    103,680.45x = 5,227,057,830.83
  5. Step 5: Solve for x
    x = 5,227,057,830.83/103,680.45
  6. Step 6: Final answer
    x = 50,415.08

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1.5x scale

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.