Home / 105,481.23-145,563.85-57,734.16

Finding the Fourth Proportional to 105,481.23, 145,563.85 and 57,734.16

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Solution

The fourth proportional to 105,481.23, 145,563.85 and 57,734.16 is: 79,673.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,481.23 : 145,563.85 = 57,734.16 : x
  2. Step 2: Convert to fraction form
    105,481.23/145,563.85 = 57,734.16/x
  3. Step 3: Cross multiply
    105,481.23x = 145,563.85 × 57,734.16
  4. Step 4: Simplify right side
    105,481.23x = 8,404,005,733.96
  5. Step 5: Solve for x
    x = 8,404,005,733.96/105,481.23
  6. Step 6: Final answer
    x = 79,673.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.