Home / 203,427.42-280,738.73-112,777.62

Finding the Fourth Proportional to 203,427.42, 280,738.73 and 112,777.62

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Solution

The fourth proportional to 203,427.42, 280,738.73 and 112,777.62 is: 155,638.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,427.42 : 280,738.73 = 112,777.62 : x
  2. Step 2: Convert to fraction form
    203,427.42/280,738.73 = 112,777.62/x
  3. Step 3: Cross multiply
    203,427.42x = 280,738.73 × 112,777.62
  4. Step 4: Simplify right side
    203,427.42x = 31,661,045,811.22
  5. Step 5: Solve for x
    x = 31,661,045,811.22/203,427.42
  6. Step 6: Final answer
    x = 155,638.04

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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.