Home / 239,107.24-329,968.98-137,136.64

Finding the Fourth Proportional to 239,107.24, 329,968.98 and 137,136.64

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Solution

The fourth proportional to 239,107.24, 329,968.98 and 137,136.64 is: 189,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,107.24 : 329,968.98 = 137,136.64 : x
  2. Step 2: Convert to fraction form
    239,107.24/329,968.98 = 137,136.64/x
  3. Step 3: Cross multiply
    239,107.24x = 329,968.98 × 137,136.64
  4. Step 4: Simplify right side
    239,107.24x = 45,250,837,221.43
  5. Step 5: Solve for x
    x = 45,250,837,221.43/239,107.24
  6. Step 6: Final answer
    x = 189,249.13

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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.