Home / 145,855.13-218,819.60-40,674.09

Finding the Fourth Proportional to 145,855.13, 218,819.60 and 40,674.09

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Solution

The fourth proportional to 145,855.13, 218,819.60 and 40,674.09 is: 61,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,855.13 : 218,819.60 = 40,674.09 : x
  2. Step 2: Convert to fraction form
    145,855.13/218,819.60 = 40,674.09/x
  3. Step 3: Cross multiply
    145,855.13x = 218,819.60 × 40,674.09
  4. Step 4: Simplify right side
    145,855.13x = 8,900,288,104.16
  5. Step 5: Solve for x
    x = 8,900,288,104.16/145,855.13
  6. Step 6: Final answer
    x = 61,021.43

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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.