Home / 104,974.16-157,403.42-71,731.76

Finding the Fourth Proportional to 104,974.16, 157,403.42 and 71,731.76

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Solution

The fourth proportional to 104,974.16, 157,403.42 and 71,731.76 is: 107,558.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,974.16 : 157,403.42 = 71,731.76 : x
  2. Step 2: Convert to fraction form
    104,974.16/157,403.42 = 71,731.76/x
  3. Step 3: Cross multiply
    104,974.16x = 157,403.42 × 71,731.76
  4. Step 4: Simplify right side
    104,974.16x = 11,290,824,346.62
  5. Step 5: Solve for x
    x = 11,290,824,346.62/104,974.16
  6. Step 6: Final answer
    x = 107,558.13

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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.