Home / 203,037.74-280,188.69-112,391.79

Finding the Fourth Proportional to 203,037.74, 280,188.69 and 112,391.79

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Solution

The fourth proportional to 203,037.74, 280,188.69 and 112,391.79 is: 155,098.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,037.74 : 280,188.69 = 112,391.79 : x
  2. Step 2: Convert to fraction form
    203,037.74/280,188.69 = 112,391.79/x
  3. Step 3: Cross multiply
    203,037.74x = 280,188.69 × 112,391.79
  4. Step 4: Simplify right side
    203,037.74x = 31,490,908,406.86
  5. Step 5: Solve for x
    x = 31,490,908,406.86/203,037.74
  6. Step 6: Final answer
    x = 155,098.79

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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.