Home / 120,664.70-166,541.51-69,685.73

Finding the Fourth Proportional to 120,664.70, 166,541.51 and 69,685.73

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Solution

The fourth proportional to 120,664.70, 166,541.51 and 69,685.73 is: 96,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,664.70 : 166,541.51 = 69,685.73 : x
  2. Step 2: Convert to fraction form
    120,664.70/166,541.51 = 69,685.73/x
  3. Step 3: Cross multiply
    120,664.70x = 166,541.51 × 69,685.73
  4. Step 4: Simplify right side
    120,664.70x = 11,605,566,041.16
  5. Step 5: Solve for x
    x = 11,605,566,041.16/120,664.70
  6. Step 6: Final answer
    x = 96,180.30

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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.