Home / 115,274.43-159,078.60-64,291.68

Finding the Fourth Proportional to 115,274.43, 159,078.60 and 64,291.68

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Solution

The fourth proportional to 115,274.43, 159,078.60 and 64,291.68 is: 88,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,274.43 : 159,078.60 = 64,291.68 : x
  2. Step 2: Convert to fraction form
    115,274.43/159,078.60 = 64,291.68/x
  3. Step 3: Cross multiply
    115,274.43x = 159,078.60 × 64,291.68
  4. Step 4: Simplify right side
    115,274.43x = 10,227,430,446.05
  5. Step 5: Solve for x
    x = 10,227,430,446.05/115,274.43
  6. Step 6: Final answer
    x = 88,722.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.