Home / 103,131.43-154,697.26-28,252.22

Finding the Fourth Proportional to 103,131.43, 154,697.26 and 28,252.22

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Solution

The fourth proportional to 103,131.43, 154,697.26 and 28,252.22 is: 42,378.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,131.43 : 154,697.26 = 28,252.22 : x
  2. Step 2: Convert to fraction form
    103,131.43/154,697.26 = 28,252.22/x
  3. Step 3: Cross multiply
    103,131.43x = 154,697.26 × 28,252.22
  4. Step 4: Simplify right side
    103,131.43x = 4,370,541,022.92
  5. Step 5: Solve for x
    x = 4,370,541,022.92/103,131.43
  6. Step 6: Final answer
    x = 42,378.36

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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.