Home / 258,143.15-356,234.96-141,858.54

Finding the Fourth Proportional to 258,143.15, 356,234.96 and 141,858.54

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Solution

The fourth proportional to 258,143.15, 356,234.96 and 141,858.54 is: 195,763.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,143.15 : 356,234.96 = 141,858.54 : x
  2. Step 2: Convert to fraction form
    258,143.15/356,234.96 = 141,858.54/x
  3. Step 3: Cross multiply
    258,143.15x = 356,234.96 × 141,858.54
  4. Step 4: Simplify right side
    258,143.15x = 50,534,971,677.20
  5. Step 5: Solve for x
    x = 50,534,971,677.20/258,143.15
  6. Step 6: Final answer
    x = 195,763.36

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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.