Home / 120,700.43-166,528.06-69,706.43

Finding the Fourth Proportional to 120,700.43, 166,528.06 and 69,706.43

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Solution

The fourth proportional to 120,700.43, 166,528.06 and 69,706.43 is: 96,172.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,700.43 : 166,528.06 = 69,706.43 : x
  2. Step 2: Convert to fraction form
    120,700.43/166,528.06 = 69,706.43/x
  3. Step 3: Cross multiply
    120,700.43x = 166,528.06 × 69,706.43
  4. Step 4: Simplify right side
    120,700.43x = 11,608,076,557.43
  5. Step 5: Solve for x
    x = 11,608,076,557.43/120,700.43
  6. Step 6: Final answer
    x = 96,172.62

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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.