Home / 94,020.96-140,815.44-79,039.20

Finding the Fourth Proportional to 94,020.96, 140,815.44 and 79,039.20

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Solution

The fourth proportional to 94,020.96, 140,815.44 and 79,039.20 is: 118,377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,020.96 : 140,815.44 = 79,039.20 : x
  2. Step 2: Convert to fraction form
    94,020.96/140,815.44 = 79,039.20/x
  3. Step 3: Cross multiply
    94,020.96x = 140,815.44 × 79,039.20
  4. Step 4: Simplify right side
    94,020.96x = 11,129,939,725.25
  5. Step 5: Solve for x
    x = 11,129,939,725.25/94,020.96
  6. Step 6: Final answer
    x = 118,377.22

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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.