Home / 105,418.56-158,126.92-43,045.28

Finding the Fourth Proportional to 105,418.56, 158,126.92 and 43,045.28

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Solution

The fourth proportional to 105,418.56, 158,126.92 and 43,045.28 is: 64,567.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,418.56 : 158,126.92 = 43,045.28 : x
  2. Step 2: Convert to fraction form
    105,418.56/158,126.92 = 43,045.28/x
  3. Step 3: Cross multiply
    105,418.56x = 158,126.92 × 43,045.28
  4. Step 4: Simplify right side
    105,418.56x = 6,806,617,546.94
  5. Step 5: Solve for x
    x = 6,806,617,546.94/105,418.56
  6. Step 6: Final answer
    x = 64,567.54

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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.