Home / 112,941.85-169,423.26-80,619.37

Finding the Fourth Proportional to 112,941.85, 169,423.26 and 80,619.37

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Solution

The fourth proportional to 112,941.85, 169,423.26 and 80,619.37 is: 120,936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,941.85 : 169,423.26 = 80,619.37 : x
  2. Step 2: Convert to fraction form
    112,941.85/169,423.26 = 80,619.37/x
  3. Step 3: Cross multiply
    112,941.85x = 169,423.26 × 80,619.37
  4. Step 4: Simplify right side
    112,941.85x = 13,658,796,484.55
  5. Step 5: Solve for x
    x = 13,658,796,484.55/112,941.85
  6. Step 6: Final answer
    x = 120,936.54

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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.