Home / 121,043.84-181,375.96-76,576.67

Finding the Fourth Proportional to 121,043.84, 181,375.96 and 76,576.67

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Solution

The fourth proportional to 121,043.84, 181,375.96 and 76,576.67 is: 114,744.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,043.84 : 181,375.96 = 76,576.67 : x
  2. Step 2: Convert to fraction form
    121,043.84/181,375.96 = 76,576.67/x
  3. Step 3: Cross multiply
    121,043.84x = 181,375.96 × 76,576.67
  4. Step 4: Simplify right side
    121,043.84x = 13,889,166,250.15
  5. Step 5: Solve for x
    x = 13,889,166,250.15/121,043.84
  6. Step 6: Final answer
    x = 114,744.92

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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.