Home / 145,418.20-218,141.70-50,633.80

Finding the Fourth Proportional to 145,418.20, 218,141.70 and 50,633.80

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Solution

The fourth proportional to 145,418.20, 218,141.70 and 50,633.80 is: 75,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,418.20 : 218,141.70 = 50,633.80 : x
  2. Step 2: Convert to fraction form
    145,418.20/218,141.70 = 50,633.80/x
  3. Step 3: Cross multiply
    145,418.20x = 218,141.70 × 50,633.80
  4. Step 4: Simplify right side
    145,418.20x = 11,045,343,209.46
  5. Step 5: Solve for x
    x = 11,045,343,209.46/145,418.20
  6. Step 6: Final answer
    x = 75,955.71

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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.