Home / 135,772.15-203,532.12-72,635.85

Finding the Fourth Proportional to 135,772.15, 203,532.12 and 72,635.85

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Solution

The fourth proportional to 135,772.15, 203,532.12 and 72,635.85 is: 108,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,772.15 : 203,532.12 = 72,635.85 : x
  2. Step 2: Convert to fraction form
    135,772.15/203,532.12 = 72,635.85/x
  3. Step 3: Cross multiply
    135,772.15x = 203,532.12 × 72,635.85
  4. Step 4: Simplify right side
    135,772.15x = 14,783,728,538.50
  5. Step 5: Solve for x
    x = 14,783,728,538.50/135,772.15
  6. Step 6: Final answer
    x = 108,886.31

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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.