Home / 115,343.94-159,190.36-67,616.30

Finding the Fourth Proportional to 115,343.94, 159,190.36 and 67,616.30

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Solution

The fourth proportional to 115,343.94, 159,190.36 and 67,616.30 is: 93,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,343.94 : 159,190.36 = 67,616.30 : x
  2. Step 2: Convert to fraction form
    115,343.94/159,190.36 = 67,616.30/x
  3. Step 3: Cross multiply
    115,343.94x = 159,190.36 × 67,616.30
  4. Step 4: Simplify right side
    115,343.94x = 10,763,863,138.87
  5. Step 5: Solve for x
    x = 10,763,863,138.87/115,343.94
  6. Step 6: Final answer
    x = 93,319.71

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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.