Home / 203,181.56-280,378.22-112,532.10

Finding the Fourth Proportional to 203,181.56, 280,378.22 and 112,532.10

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Solution

The fourth proportional to 203,181.56, 280,378.22 and 112,532.10 is: 155,287.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,181.56 : 280,378.22 = 112,532.10 : x
  2. Step 2: Convert to fraction form
    203,181.56/280,378.22 = 112,532.10/x
  3. Step 3: Cross multiply
    203,181.56x = 280,378.22 × 112,532.10
  4. Step 4: Simplify right side
    203,181.56x = 31,551,549,890.86
  5. Step 5: Solve for x
    x = 31,551,549,890.86/203,181.56
  6. Step 6: Final answer
    x = 155,287.47

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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.