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Finding the Fourth Proportional to 144,577.34, 199,516.70 and 80,915.13

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Solution

The fourth proportional to 144,577.34, 199,516.70 and 80,915.13 is: 111,662.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,577.34 : 199,516.70 = 80,915.13 : x
  2. Step 2: Convert to fraction form
    144,577.34/199,516.70 = 80,915.13/x
  3. Step 3: Cross multiply
    144,577.34x = 199,516.70 × 80,915.13
  4. Step 4: Simplify right side
    144,577.34x = 16,143,919,717.67
  5. Step 5: Solve for x
    x = 16,143,919,717.67/144,577.34
  6. Step 6: Final answer
    x = 111,662.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.