Home / 104,964.15-157,388.43-71,721.75

Finding the Fourth Proportional to 104,964.15, 157,388.43 and 71,721.75

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Solution

The fourth proportional to 104,964.15, 157,388.43 and 71,721.75 is: 107,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,964.15 : 157,388.43 = 71,721.75 : x
  2. Step 2: Convert to fraction form
    104,964.15/157,388.43 = 71,721.75/x
  3. Step 3: Cross multiply
    104,964.15x = 157,388.43 × 71,721.75
  4. Step 4: Simplify right side
    104,964.15x = 11,288,173,629.35
  5. Step 5: Solve for x
    x = 11,288,173,629.35/104,964.15
  6. Step 6: Final answer
    x = 107,543.13

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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.