Home / 115,115.37-158,817.07-69,760.63

Finding the Fourth Proportional to 115,115.37, 158,817.07 and 69,760.63

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Solution

The fourth proportional to 115,115.37, 158,817.07 and 69,760.63 is: 96,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,115.37 : 158,817.07 = 69,760.63 : x
  2. Step 2: Convert to fraction form
    115,115.37/158,817.07 = 69,760.63/x
  3. Step 3: Cross multiply
    115,115.37x = 158,817.07 × 69,760.63
  4. Step 4: Simplify right side
    115,115.37x = 11,079,178,857.95
  5. Step 5: Solve for x
    x = 11,079,178,857.95/115,115.37
  6. Step 6: Final answer
    x = 96,244.13

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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.