Home / 205,629.70-308,214.15-105,751.30

Finding the Fourth Proportional to 205,629.70, 308,214.15 and 105,751.30

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Solution

The fourth proportional to 205,629.70, 308,214.15 and 105,751.30 is: 158,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,629.70 : 308,214.15 = 105,751.30 : x
  2. Step 2: Convert to fraction form
    205,629.70/308,214.15 = 105,751.30/x
  3. Step 3: Cross multiply
    205,629.70x = 308,214.15 × 105,751.30
  4. Step 4: Simplify right side
    205,629.70x = 32,594,047,040.90
  5. Step 5: Solve for x
    x = 32,594,047,040.90/205,629.70
  6. Step 6: Final answer
    x = 158,508.46

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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.