Home / 254,564.20-381,842.70-86,048.60

Finding the Fourth Proportional to 254,564.20, 381,842.70 and 86,048.60

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Solution

The fourth proportional to 254,564.20, 381,842.70 and 86,048.60 is: 129,071.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,564.20 : 381,842.70 = 86,048.60 : x
  2. Step 2: Convert to fraction form
    254,564.20/381,842.70 = 86,048.60/x
  3. Step 3: Cross multiply
    254,564.20x = 381,842.70 × 86,048.60
  4. Step 4: Simplify right side
    254,564.20x = 32,857,029,755.22
  5. Step 5: Solve for x
    x = 32,857,029,755.22/254,564.20
  6. Step 6: Final answer
    x = 129,071.68

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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.