Home / 120,664.65-166,541.45-69,685.68

Finding the Fourth Proportional to 120,664.65, 166,541.45 and 69,685.68

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Solution

The fourth proportional to 120,664.65, 166,541.45 and 69,685.68 is: 96,180.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,664.65 : 166,541.45 = 69,685.68 : x
  2. Step 2: Convert to fraction form
    120,664.65/166,541.45 = 69,685.68/x
  3. Step 3: Cross multiply
    120,664.65x = 166,541.45 × 69,685.68
  4. Step 4: Simplify right side
    120,664.65x = 11,605,553,843.01
  5. Step 5: Solve for x
    x = 11,605,553,843.01/120,664.65
  6. Step 6: Final answer
    x = 96,180.23

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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.