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Finding the Fourth Proportional to 115,297.15, 159,085.87 and 69,998.98

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Solution

The fourth proportional to 115,297.15, 159,085.87 and 69,998.98 is: 96,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,297.15 : 159,085.87 = 69,998.98 : x
  2. Step 2: Convert to fraction form
    115,297.15/159,085.87 = 69,998.98/x
  3. Step 3: Cross multiply
    115,297.15x = 159,085.87 × 69,998.98
  4. Step 4: Simplify right side
    115,297.15x = 11,135,848,632.41
  5. Step 5: Solve for x
    x = 11,135,848,632.41/115,297.15
  6. Step 6: Final answer
    x = 96,583.90

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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.