Home / 203,077.15-280,256.79-112,443.09

Finding the Fourth Proportional to 203,077.15, 280,256.79 and 112,443.09

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Solution

The fourth proportional to 203,077.15, 280,256.79 and 112,443.09 is: 155,177.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,077.15 : 280,256.79 = 112,443.09 : x
  2. Step 2: Convert to fraction form
    203,077.15/280,256.79 = 112,443.09/x
  3. Step 3: Cross multiply
    203,077.15x = 280,256.79 × 112,443.09
  4. Step 4: Simplify right side
    203,077.15x = 31,512,939,461.08
  5. Step 5: Solve for x
    x = 31,512,939,461.08/203,077.15
  6. Step 6: Final answer
    x = 155,177.18

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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.