Home / 103,440.90-155,161.35-33,327.30

Finding the Fourth Proportional to 103,440.90, 155,161.35 and 33,327.30

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Solution

The fourth proportional to 103,440.90, 155,161.35 and 33,327.30 is: 49,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,440.90 : 155,161.35 = 33,327.30 : x
  2. Step 2: Convert to fraction form
    103,440.90/155,161.35 = 33,327.30/x
  3. Step 3: Cross multiply
    103,440.90x = 155,161.35 × 33,327.30
  4. Step 4: Simplify right side
    103,440.90x = 5,171,108,859.86
  5. Step 5: Solve for x
    x = 5,171,108,859.86/103,440.90
  6. Step 6: Final answer
    x = 49,990.95

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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.