Home / 80,157.06-120,195.70-26,830.51

Finding the Fourth Proportional to 80,157.06, 120,195.70 and 26,830.51

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Solution

The fourth proportional to 80,157.06, 120,195.70 and 26,830.51 is: 40,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,157.06 : 120,195.70 = 26,830.51 : x
  2. Step 2: Convert to fraction form
    80,157.06/120,195.70 = 26,830.51/x
  3. Step 3: Cross multiply
    80,157.06x = 120,195.70 × 26,830.51
  4. Step 4: Simplify right side
    80,157.06x = 3,224,911,563.24
  5. Step 5: Solve for x
    x = 3,224,911,563.24/80,157.06
  6. Step 6: Final answer
    x = 40,232.41

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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.