Home / 104,985.09-157,388.31-45,776.61

Finding the Fourth Proportional to 104,985.09, 157,388.31 and 45,776.61

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Solution

The fourth proportional to 104,985.09, 157,388.31 and 45,776.61 is: 68,625.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,985.09 : 157,388.31 = 45,776.61 : x
  2. Step 2: Convert to fraction form
    104,985.09/157,388.31 = 45,776.61/x
  3. Step 3: Cross multiply
    104,985.09x = 157,388.31 × 45,776.61
  4. Step 4: Simplify right side
    104,985.09x = 7,204,703,285.43
  5. Step 5: Solve for x
    x = 7,204,703,285.43/104,985.09
  6. Step 6: Final answer
    x = 68,625.97

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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.