Home / 102,481.25-153,716.34-31,404.10

Finding the Fourth Proportional to 102,481.25, 153,716.34 and 31,404.10

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Solution

The fourth proportional to 102,481.25, 153,716.34 and 31,404.10 is: 47,104.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,481.25 : 153,716.34 = 31,404.10 : x
  2. Step 2: Convert to fraction form
    102,481.25/153,716.34 = 31,404.10/x
  3. Step 3: Cross multiply
    102,481.25x = 153,716.34 × 31,404.10
  4. Step 4: Simplify right side
    102,481.25x = 4,827,323,312.99
  5. Step 5: Solve for x
    x = 4,827,323,312.99/102,481.25
  6. Step 6: Final answer
    x = 47,104.45

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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.