Home / 140,615.04-210,856.94-81,467.63

Finding the Fourth Proportional to 140,615.04, 210,856.94 and 81,467.63

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Solution

The fourth proportional to 140,615.04, 210,856.94 and 81,467.63 is: 122,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,615.04 : 210,856.94 = 81,467.63 : x
  2. Step 2: Convert to fraction form
    140,615.04/210,856.94 = 81,467.63/x
  3. Step 3: Cross multiply
    140,615.04x = 210,856.94 × 81,467.63
  4. Step 4: Simplify right side
    140,615.04x = 17,178,015,170.85
  5. Step 5: Solve for x
    x = 17,178,015,170.85/140,615.04
  6. Step 6: Final answer
    x = 122,163.43

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1.5x scale

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.