Home / 130,201.75-179,676.80-76,491.67

Finding the Fourth Proportional to 130,201.75, 179,676.80 and 76,491.67

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Solution

The fourth proportional to 130,201.75, 179,676.80 and 76,491.67 is: 105,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,201.75 : 179,676.80 = 76,491.67 : x
  2. Step 2: Convert to fraction form
    130,201.75/179,676.80 = 76,491.67/x
  3. Step 3: Cross multiply
    130,201.75x = 179,676.80 × 76,491.67
  4. Step 4: Simplify right side
    130,201.75x = 13,743,778,492.26
  5. Step 5: Solve for x
    x = 13,743,778,492.26/130,201.75
  6. Step 6: Final answer
    x = 105,557.56

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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.