Home / 112,390.44-154,954.08-80,161.80

Finding the Fourth Proportional to 112,390.44, 154,954.08 and 80,161.80

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Solution

The fourth proportional to 112,390.44, 154,954.08 and 80,161.80 is: 110,520.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,390.44 : 154,954.08 = 80,161.80 : x
  2. Step 2: Convert to fraction form
    112,390.44/154,954.08 = 80,161.80/x
  3. Step 3: Cross multiply
    112,390.44x = 154,954.08 × 80,161.80
  4. Step 4: Simplify right side
    112,390.44x = 12,421,397,970.14
  5. Step 5: Solve for x
    x = 12,421,397,970.14/112,390.44
  6. Step 6: Final answer
    x = 110,520.06

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1.5x scale

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.