Home / 97,516.89-146,264.85-66,128.43

Finding the Fourth Proportional to 97,516.89, 146,264.85 and 66,128.43

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Solution

The fourth proportional to 97,516.89, 146,264.85 and 66,128.43 is: 99,185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,516.89 : 146,264.85 = 66,128.43 : x
  2. Step 2: Convert to fraction form
    97,516.89/146,264.85 = 66,128.43/x
  3. Step 3: Cross multiply
    97,516.89x = 146,264.85 × 66,128.43
  4. Step 4: Simplify right side
    97,516.89x = 9,672,264,620.44
  5. Step 5: Solve for x
    x = 9,672,264,620.44/97,516.89
  6. Step 6: Final answer
    x = 99,185.53

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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.