Home / 103,634.30-155,451.45-28,754.30

Finding the Fourth Proportional to 103,634.30, 155,451.45 and 28,754.30

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Solution

The fourth proportional to 103,634.30, 155,451.45 and 28,754.30 is: 43,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,634.30 : 155,451.45 = 28,754.30 : x
  2. Step 2: Convert to fraction form
    103,634.30/155,451.45 = 28,754.30/x
  3. Step 3: Cross multiply
    103,634.30x = 155,451.45 × 28,754.30
  4. Step 4: Simplify right side
    103,634.30x = 4,469,897,628.74
  5. Step 5: Solve for x
    x = 4,469,897,628.74/103,634.30
  6. Step 6: Final answer
    x = 43,131.45

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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.