Home / 120,923.87-166,434.48-106,489.22

Finding the Fourth Proportional to 120,923.87, 166,434.48 and 106,489.22

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Solution

The fourth proportional to 120,923.87, 166,434.48 and 106,489.22 is: 146,567.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,923.87 : 166,434.48 = 106,489.22 : x
  2. Step 2: Convert to fraction form
    120,923.87/166,434.48 = 106,489.22/x
  3. Step 3: Cross multiply
    120,923.87x = 166,434.48 × 106,489.22
  4. Step 4: Simplify right side
    120,923.87x = 17,723,477,124.13
  5. Step 5: Solve for x
    x = 17,723,477,124.13/120,923.87
  6. Step 6: Final answer
    x = 146,567.24

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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.