Home / 145,991.45-218,968.25-46,161.72

Finding the Fourth Proportional to 145,991.45, 218,968.25 and 46,161.72

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Solution

The fourth proportional to 145,991.45, 218,968.25 and 46,161.72 is: 69,236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,991.45 : 218,968.25 = 46,161.72 : x
  2. Step 2: Convert to fraction form
    145,991.45/218,968.25 = 46,161.72/x
  3. Step 3: Cross multiply
    145,991.45x = 218,968.25 × 46,161.72
  4. Step 4: Simplify right side
    145,991.45x = 10,107,950,814.58
  5. Step 5: Solve for x
    x = 10,107,950,814.58/145,991.45
  6. Step 6: Final answer
    x = 69,236.59

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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.