Home / 121,105.96-181,671.30-46,289.07

Finding the Fourth Proportional to 121,105.96, 181,671.30 and 46,289.07

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Solution

The fourth proportional to 121,105.96, 181,671.30 and 46,289.07 is: 69,438.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,105.96 : 181,671.30 = 46,289.07 : x
  2. Step 2: Convert to fraction form
    121,105.96/181,671.30 = 46,289.07/x
  3. Step 3: Cross multiply
    121,105.96x = 181,671.30 × 46,289.07
  4. Step 4: Simplify right side
    121,105.96x = 8,409,395,522.69
  5. Step 5: Solve for x
    x = 8,409,395,522.69/121,105.96
  6. Step 6: Final answer
    x = 69,438.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.