Home / 131,634.30-197,451.45-103,640.70

Finding the Fourth Proportional to 131,634.30, 197,451.45 and 103,640.70

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Solution

The fourth proportional to 131,634.30, 197,451.45 and 103,640.70 is: 155,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,634.30 : 197,451.45 = 103,640.70 : x
  2. Step 2: Convert to fraction form
    131,634.30/197,451.45 = 103,640.70/x
  3. Step 3: Cross multiply
    131,634.30x = 197,451.45 × 103,640.70
  4. Step 4: Simplify right side
    131,634.30x = 20,464,006,494.02
  5. Step 5: Solve for x
    x = 20,464,006,494.02/131,634.30
  6. Step 6: Final answer
    x = 155,461.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.