Home / 144,252.21-199,057.62-79,720.67

Finding the Fourth Proportional to 144,252.21, 199,057.62 and 79,720.67

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Solution

The fourth proportional to 144,252.21, 199,057.62 and 79,720.67 is: 110,008.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,252.21 : 199,057.62 = 79,720.67 : x
  2. Step 2: Convert to fraction form
    144,252.21/199,057.62 = 79,720.67/x
  3. Step 3: Cross multiply
    144,252.21x = 199,057.62 × 79,720.67
  4. Step 4: Simplify right side
    144,252.21x = 15,869,006,835.01
  5. Step 5: Solve for x
    x = 15,869,006,835.01/144,252.21
  6. Step 6: Final answer
    x = 110,008.76

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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.