Home / 129,461.26-194,211.04-66,317.10

Finding the Fourth Proportional to 129,461.26, 194,211.04 and 66,317.10

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Solution

The fourth proportional to 129,461.26, 194,211.04 and 66,317.10 is: 99,485.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,461.26 : 194,211.04 = 66,317.10 : x
  2. Step 2: Convert to fraction form
    129,461.26/194,211.04 = 66,317.10/x
  3. Step 3: Cross multiply
    129,461.26x = 194,211.04 × 66,317.10
  4. Step 4: Simplify right side
    129,461.26x = 12,879,512,960.78
  5. Step 5: Solve for x
    x = 12,879,512,960.78/129,461.26
  6. Step 6: Final answer
    x = 99,485.46

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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.