Home / 203,126.87-280,314.63-117,085.28

Finding the Fourth Proportional to 203,126.87, 280,314.63 and 117,085.28

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Solution

The fourth proportional to 203,126.87, 280,314.63 and 117,085.28 is: 161,577.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,126.87 : 280,314.63 = 117,085.28 : x
  2. Step 2: Convert to fraction form
    203,126.87/280,314.63 = 117,085.28/x
  3. Step 3: Cross multiply
    203,126.87x = 280,314.63 × 117,085.28
  4. Step 4: Simplify right side
    203,126.87x = 32,820,718,628.72
  5. Step 5: Solve for x
    x = 32,820,718,628.72/203,126.87
  6. Step 6: Final answer
    x = 161,577.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.