Home / 203,256.30-280,495.95-112,613.70

Finding the Fourth Proportional to 203,256.30, 280,495.95 and 112,613.70

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Solution

The fourth proportional to 203,256.30, 280,495.95 and 112,613.70 is: 155,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,256.30 : 280,495.95 = 112,613.70 : x
  2. Step 2: Convert to fraction form
    203,256.30/280,495.95 = 112,613.70/x
  3. Step 3: Cross multiply
    203,256.30x = 280,495.95 × 112,613.70
  4. Step 4: Simplify right side
    203,256.30x = 31,587,685,660.84
  5. Step 5: Solve for x
    x = 31,587,685,660.84/203,256.30
  6. Step 6: Final answer
    x = 155,408.15

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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.