Home / 120,623.91-166,457.78-69,634.91

Finding the Fourth Proportional to 120,623.91, 166,457.78 and 69,634.91

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Solution

The fourth proportional to 120,623.91, 166,457.78 and 69,634.91 is: 96,094.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,623.91 : 166,457.78 = 69,634.91 : x
  2. Step 2: Convert to fraction form
    120,623.91/166,457.78 = 69,634.91/x
  3. Step 3: Cross multiply
    120,623.91x = 166,457.78 × 69,634.91
  4. Step 4: Simplify right side
    120,623.91x = 11,591,272,529.10
  5. Step 5: Solve for x
    x = 11,591,272,529.10/120,623.91
  6. Step 6: Final answer
    x = 96,094.32

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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.