Home / 102,741.21-154,039.37-39,508.21

Finding the Fourth Proportional to 102,741.21, 154,039.37 and 39,508.21

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Solution

The fourth proportional to 102,741.21, 154,039.37 and 39,508.21 is: 59,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,741.21 : 154,039.37 = 39,508.21 : x
  2. Step 2: Convert to fraction form
    102,741.21/154,039.37 = 39,508.21/x
  3. Step 3: Cross multiply
    102,741.21x = 154,039.37 × 39,508.21
  4. Step 4: Simplify right side
    102,741.21x = 6,085,819,129.00
  5. Step 5: Solve for x
    x = 6,085,819,129.00/102,741.21
  6. Step 6: Final answer
    x = 59,234.45

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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.