Home / 115,371.42-159,150.87-79,579.14

Finding the Fourth Proportional to 115,371.42, 159,150.87 and 79,579.14

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Solution

The fourth proportional to 115,371.42, 159,150.87 and 79,579.14 is: 109,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,371.42 : 159,150.87 = 79,579.14 : x
  2. Step 2: Convert to fraction form
    115,371.42/159,150.87 = 79,579.14/x
  3. Step 3: Cross multiply
    115,371.42x = 159,150.87 × 79,579.14
  4. Step 4: Simplify right side
    115,371.42x = 12,665,089,364.85
  5. Step 5: Solve for x
    x = 12,665,089,364.85/115,371.42
  6. Step 6: Final answer
    x = 109,776.66

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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.