Home / 231,722.16-347,611.68-81,931.44

Finding the Fourth Proportional to 231,722.16, 347,611.68 and 81,931.44

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Solution

The fourth proportional to 231,722.16, 347,611.68 and 81,931.44 is: 122,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,722.16 : 347,611.68 = 81,931.44 : x
  2. Step 2: Convert to fraction form
    231,722.16/347,611.68 = 81,931.44/x
  3. Step 3: Cross multiply
    231,722.16x = 347,611.68 × 81,931.44
  4. Step 4: Simplify right side
    231,722.16x = 28,480,325,503.22
  5. Step 5: Solve for x
    x = 28,480,325,503.22/231,722.16
  6. Step 6: Final answer
    x = 122,907.22

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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.