Home / 115,015.35-158,717.30-64,704.63

Finding the Fourth Proportional to 115,015.35, 158,717.30 and 64,704.63

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Solution

The fourth proportional to 115,015.35, 158,717.30 and 64,704.63 is: 89,290.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,015.35 : 158,717.30 = 64,704.63 : x
  2. Step 2: Convert to fraction form
    115,015.35/158,717.30 = 64,704.63/x
  3. Step 3: Cross multiply
    115,015.35x = 158,717.30 × 64,704.63
  4. Step 4: Simplify right side
    115,015.35x = 10,269,743,847.58
  5. Step 5: Solve for x
    x = 10,269,743,847.58/115,015.35
  6. Step 6: Final answer
    x = 89,290.20

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1.5x scale

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.