Home / 256,832.24-354,421.64-142,107.89

Finding the Fourth Proportional to 256,832.24, 354,421.64 and 142,107.89

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Solution

The fourth proportional to 256,832.24, 354,421.64 and 142,107.89 is: 196,105.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,832.24 : 354,421.64 = 142,107.89 : x
  2. Step 2: Convert to fraction form
    256,832.24/354,421.64 = 142,107.89/x
  3. Step 3: Cross multiply
    256,832.24x = 354,421.64 × 142,107.89
  4. Step 4: Simplify right side
    256,832.24x = 50,366,108,948.09
  5. Step 5: Solve for x
    x = 50,366,108,948.09/256,832.24
  6. Step 6: Final answer
    x = 196,105.09

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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.