Home / 170,939.88-256,440.80-85,595.24

Finding the Fourth Proportional to 170,939.88, 256,440.80 and 85,595.24

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Solution

The fourth proportional to 170,939.88, 256,440.80 and 85,595.24 is: 128,408.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,939.88 : 256,440.80 = 85,595.24 : x
  2. Step 2: Convert to fraction form
    170,939.88/256,440.80 = 85,595.24/x
  3. Step 3: Cross multiply
    170,939.88x = 256,440.80 × 85,595.24
  4. Step 4: Simplify right side
    170,939.88x = 21,950,112,676.88
  5. Step 5: Solve for x
    x = 21,950,112,676.88/170,939.88
  6. Step 6: Final answer
    x = 128,408.38

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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.