Home / 105,426.56-158,138.92-43,053.28

Finding the Fourth Proportional to 105,426.56, 158,138.92 and 43,053.28

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Solution

The fourth proportional to 105,426.56, 158,138.92 and 43,053.28 is: 64,579.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,426.56 : 158,138.92 = 43,053.28 : x
  2. Step 2: Convert to fraction form
    105,426.56/158,138.92 = 43,053.28/x
  3. Step 3: Cross multiply
    105,426.56x = 158,138.92 × 43,053.28
  4. Step 4: Simplify right side
    105,426.56x = 6,808,399,201.66
  5. Step 5: Solve for x
    x = 6,808,399,201.66/105,426.56
  6. Step 6: Final answer
    x = 64,579.54

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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.