Home / 129,961.94-179,348.19-76,248.01

Finding the Fourth Proportional to 129,961.94, 179,348.19 and 76,248.01

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Solution

The fourth proportional to 129,961.94, 179,348.19 and 76,248.01 is: 105,222.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,961.94 : 179,348.19 = 76,248.01 : x
  2. Step 2: Convert to fraction form
    129,961.94/179,348.19 = 76,248.01/x
  3. Step 3: Cross multiply
    129,961.94x = 179,348.19 × 76,248.01
  4. Step 4: Simplify right side
    129,961.94x = 13,674,942,584.60
  5. Step 5: Solve for x
    x = 13,674,942,584.60/129,961.94
  6. Step 6: Final answer
    x = 105,222.67

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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.