Home / 143,150.85-197,559.99-79,492.77

Finding the Fourth Proportional to 143,150.85, 197,559.99 and 79,492.77

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Solution

The fourth proportional to 143,150.85, 197,559.99 and 79,492.77 is: 109,706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,150.85 : 197,559.99 = 79,492.77 : x
  2. Step 2: Convert to fraction form
    143,150.85/197,559.99 = 79,492.77/x
  3. Step 3: Cross multiply
    143,150.85x = 197,559.99 × 79,492.77
  4. Step 4: Simplify right side
    143,150.85x = 15,704,590,846.27
  5. Step 5: Solve for x
    x = 15,704,590,846.27/143,150.85
  6. Step 6: Final answer
    x = 109,706.58

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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.