Home / 103,131.38-154,697.19-28,252.17

Finding the Fourth Proportional to 103,131.38, 154,697.19 and 28,252.17

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Solution

The fourth proportional to 103,131.38, 154,697.19 and 28,252.17 is: 42,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,131.38 : 154,697.19 = 28,252.17 : x
  2. Step 2: Convert to fraction form
    103,131.38/154,697.19 = 28,252.17/x
  3. Step 3: Cross multiply
    103,131.38x = 154,697.19 × 28,252.17
  4. Step 4: Simplify right side
    103,131.38x = 4,370,530,853.03
  5. Step 5: Solve for x
    x = 4,370,530,853.03/103,131.38
  6. Step 6: Final answer
    x = 42,378.28

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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.