Home / 203,336.12-280,603.85-112,705.70

Finding the Fourth Proportional to 203,336.12, 280,603.85 and 112,705.70

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Solution

The fourth proportional to 203,336.12, 280,603.85 and 112,705.70 is: 155,533.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,336.12 : 280,603.85 = 112,705.70 : x
  2. Step 2: Convert to fraction form
    203,336.12/280,603.85 = 112,705.70/x
  3. Step 3: Cross multiply
    203,336.12x = 280,603.85 × 112,705.70
  4. Step 4: Simplify right side
    203,336.12x = 31,625,653,474.93
  5. Step 5: Solve for x
    x = 31,625,653,474.93/203,336.12
  6. Step 6: Final answer
    x = 155,533.87

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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.