Home / 89,233.23-133,586.86-78,161.54

Finding the Fourth Proportional to 89,233.23, 133,586.86 and 78,161.54

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Solution

The fourth proportional to 89,233.23, 133,586.86 and 78,161.54 is: 117,011.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,233.23 : 133,586.86 = 78,161.54 : x
  2. Step 2: Convert to fraction form
    89,233.23/133,586.86 = 78,161.54/x
  3. Step 3: Cross multiply
    89,233.23x = 133,586.86 × 78,161.54
  4. Step 4: Simplify right side
    89,233.23x = 10,441,354,701.36
  5. Step 5: Solve for x
    x = 10,441,354,701.36/89,233.23
  6. Step 6: Final answer
    x = 117,011.96

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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.