Home / 102,145.48-153,217.72-26,243.96

Finding the Fourth Proportional to 102,145.48, 153,217.72 and 26,243.96

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Solution

The fourth proportional to 102,145.48, 153,217.72 and 26,243.96 is: 39,365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,145.48 : 153,217.72 = 26,243.96 : x
  2. Step 2: Convert to fraction form
    102,145.48/153,217.72 = 26,243.96/x
  3. Step 3: Cross multiply
    102,145.48x = 153,217.72 × 26,243.96
  4. Step 4: Simplify right side
    102,145.48x = 4,021,039,714.97
  5. Step 5: Solve for x
    x = 4,021,039,714.97/102,145.48
  6. Step 6: Final answer
    x = 39,365.81

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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.