Home / 115,899.93-159,945.84-68,157.72

Finding the Fourth Proportional to 115,899.93, 159,945.84 and 68,157.72

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Solution

The fourth proportional to 115,899.93, 159,945.84 and 68,157.72 is: 94,059.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,899.93 : 159,945.84 = 68,157.72 : x
  2. Step 2: Convert to fraction form
    115,899.93/159,945.84 = 68,157.72/x
  3. Step 3: Cross multiply
    115,899.93x = 159,945.84 × 68,157.72
  4. Step 4: Simplify right side
    115,899.93x = 10,901,543,777.88
  5. Step 5: Solve for x
    x = 10,901,543,777.88/115,899.93
  6. Step 6: Final answer
    x = 94,059.97

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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.