Home / 96,705.72-133,376.90-79,909.56

Finding the Fourth Proportional to 96,705.72, 133,376.90 and 79,909.56

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Solution

The fourth proportional to 96,705.72, 133,376.90 and 79,909.56 is: 110,211.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,705.72 : 133,376.90 = 79,909.56 : x
  2. Step 2: Convert to fraction form
    96,705.72/133,376.90 = 79,909.56/x
  3. Step 3: Cross multiply
    96,705.72x = 133,376.90 × 79,909.56
  4. Step 4: Simplify right side
    96,705.72x = 10,658,089,393.16
  5. Step 5: Solve for x
    x = 10,658,089,393.16/96,705.72
  6. Step 6: Final answer
    x = 110,211.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.