Home / 129,466.08-194,218.16-66,321.86

Finding the Fourth Proportional to 129,466.08, 194,218.16 and 66,321.86

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Solution

The fourth proportional to 129,466.08, 194,218.16 and 66,321.86 is: 99,492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,466.08 : 194,218.16 = 66,321.86 : x
  2. Step 2: Convert to fraction form
    129,466.08/194,218.16 = 66,321.86/x
  3. Step 3: Cross multiply
    129,466.08x = 194,218.16 × 66,321.86
  4. Step 4: Simplify right side
    129,466.08x = 12,880,908,314.28
  5. Step 5: Solve for x
    x = 12,880,908,314.28/129,466.08
  6. Step 6: Final answer
    x = 99,492.53

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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.