Home / 239,209.72-330,107.88-131,777.26

Finding the Fourth Proportional to 239,209.72, 330,107.88 and 131,777.26

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Solution

The fourth proportional to 239,209.72, 330,107.88 and 131,777.26 is: 181,851.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,209.72 : 330,107.88 = 131,777.26 : x
  2. Step 2: Convert to fraction form
    239,209.72/330,107.88 = 131,777.26/x
  3. Step 3: Cross multiply
    239,209.72x = 330,107.88 × 131,777.26
  4. Step 4: Simplify right side
    239,209.72x = 43,500,711,930.81
  5. Step 5: Solve for x
    x = 43,500,711,930.81/239,209.72
  6. Step 6: Final answer
    x = 181,851.77

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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.