Home / 215,785.82-297,800.68-125,141.05

Finding the Fourth Proportional to 215,785.82, 297,800.68 and 125,141.05

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Solution

The fourth proportional to 215,785.82, 297,800.68 and 125,141.05 is: 172,704.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,785.82 : 297,800.68 = 125,141.05 : x
  2. Step 2: Convert to fraction form
    215,785.82/297,800.68 = 125,141.05/x
  3. Step 3: Cross multiply
    215,785.82x = 297,800.68 × 125,141.05
  4. Step 4: Simplify right side
    215,785.82x = 37,267,089,727.99
  5. Step 5: Solve for x
    x = 37,267,089,727.99/215,785.82
  6. Step 6: Final answer
    x = 172,704.07

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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.