Home / 159,349.24-219,900.18-87,727.78

Finding the Fourth Proportional to 159,349.24, 219,900.18 and 87,727.78

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Solution

The fourth proportional to 159,349.24, 219,900.18 and 87,727.78 is: 121,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,349.24 : 219,900.18 = 87,727.78 : x
  2. Step 2: Convert to fraction form
    159,349.24/219,900.18 = 87,727.78/x
  3. Step 3: Cross multiply
    159,349.24x = 219,900.18 × 87,727.78
  4. Step 4: Simplify right side
    159,349.24x = 19,291,354,613.00
  5. Step 5: Solve for x
    x = 19,291,354,613.00/159,349.24
  6. Step 6: Final answer
    x = 121,063.36

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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.