Home / 105,739.09-158,511.50-45,730.03

Finding the Fourth Proportional to 105,739.09, 158,511.50 and 45,730.03

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Solution

The fourth proportional to 105,739.09, 158,511.50 and 45,730.03 is: 68,553.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,739.09 : 158,511.50 = 45,730.03 : x
  2. Step 2: Convert to fraction form
    105,739.09/158,511.50 = 45,730.03/x
  3. Step 3: Cross multiply
    105,739.09x = 158,511.50 × 45,730.03
  4. Step 4: Simplify right side
    105,739.09x = 7,248,735,650.35
  5. Step 5: Solve for x
    x = 7,248,735,650.35/105,739.09
  6. Step 6: Final answer
    x = 68,553.04

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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.