Home / 135,221.40-202,912.83-72,088.38

Finding the Fourth Proportional to 135,221.40, 202,912.83 and 72,088.38

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Solution

The fourth proportional to 135,221.40, 202,912.83 and 72,088.38 is: 108,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,221.40 : 202,912.83 = 72,088.38 : x
  2. Step 2: Convert to fraction form
    135,221.40/202,912.83 = 72,088.38/x
  3. Step 3: Cross multiply
    135,221.40x = 202,912.83 × 72,088.38
  4. Step 4: Simplify right side
    135,221.40x = 14,627,657,195.92
  5. Step 5: Solve for x
    x = 14,627,657,195.92/135,221.40
  6. Step 6: Final answer
    x = 108,175.61

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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.