Home / 159,462.12-220,057.98-87,842.44

Finding the Fourth Proportional to 159,462.12, 220,057.98 and 87,842.44

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Solution

The fourth proportional to 159,462.12, 220,057.98 and 87,842.44 is: 121,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,462.12 : 220,057.98 = 87,842.44 : x
  2. Step 2: Convert to fraction form
    159,462.12/220,057.98 = 87,842.44/x
  3. Step 3: Cross multiply
    159,462.12x = 220,057.98 × 87,842.44
  4. Step 4: Simplify right side
    159,462.12x = 19,330,429,904.67
  5. Step 5: Solve for x
    x = 19,330,429,904.67/159,462.12
  6. Step 6: Final answer
    x = 121,222.71

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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.