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Finding the Fourth Proportional to 137,735.80, 206,603.70 and 131,903.80

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Solution

The fourth proportional to 137,735.80, 206,603.70 and 131,903.80 is: 197,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,735.80 : 206,603.70 = 131,903.80 : x
  2. Step 2: Convert to fraction form
    137,735.80/206,603.70 = 131,903.80/x
  3. Step 3: Cross multiply
    137,735.80x = 206,603.70 × 131,903.80
  4. Step 4: Simplify right side
    137,735.80x = 27,251,813,124.06
  5. Step 5: Solve for x
    x = 27,251,813,124.06/137,735.80
  6. Step 6: Final answer
    x = 197,855.70

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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.