Home / 203,012.43-280,118.23-112,364.12

Finding the Fourth Proportional to 203,012.43, 280,118.23 and 112,364.12

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Solution

The fourth proportional to 203,012.43, 280,118.23 and 112,364.12 is: 155,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,012.43 : 280,118.23 = 112,364.12 : x
  2. Step 2: Convert to fraction form
    203,012.43/280,118.23 = 112,364.12/x
  3. Step 3: Cross multiply
    203,012.43x = 280,118.23 × 112,364.12
  4. Step 4: Simplify right side
    203,012.43x = 31,475,238,409.91
  5. Step 5: Solve for x
    x = 31,475,238,409.91/203,012.43
  6. Step 6: Final answer
    x = 155,040.94

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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.