Home / 203,007.06-280,147.41-112,363.20

Finding the Fourth Proportional to 203,007.06, 280,147.41 and 112,363.20

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Solution

The fourth proportional to 203,007.06, 280,147.41 and 112,363.20 is: 155,059.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,007.06 : 280,147.41 = 112,363.20 : x
  2. Step 2: Convert to fraction form
    203,007.06/280,147.41 = 112,363.20/x
  3. Step 3: Cross multiply
    203,007.06x = 280,147.41 × 112,363.20
  4. Step 4: Simplify right side
    203,007.06x = 31,478,259,459.31
  5. Step 5: Solve for x
    x = 31,478,259,459.31/203,007.06
  6. Step 6: Final answer
    x = 155,059.92

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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.