Home / 129,213.02-193,885.79-53,367.86

Finding the Fourth Proportional to 129,213.02, 193,885.79 and 53,367.86

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Solution

The fourth proportional to 129,213.02, 193,885.79 and 53,367.86 is: 80,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,213.02 : 193,885.79 = 53,367.86 : x
  2. Step 2: Convert to fraction form
    129,213.02/193,885.79 = 53,367.86/x
  3. Step 3: Cross multiply
    129,213.02x = 193,885.79 × 53,367.86
  4. Step 4: Simplify right side
    129,213.02x = 10,347,269,914.58
  5. Step 5: Solve for x
    x = 10,347,269,914.58/129,213.02
  6. Step 6: Final answer
    x = 80,079.16

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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.