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Finding the Fourth Proportional to 115,710.36, 159,832.74 and 88,806.61

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Solution

The fourth proportional to 115,710.36, 159,832.74 and 88,806.61 is: 122,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,710.36 : 159,832.74 = 88,806.61 : x
  2. Step 2: Convert to fraction form
    115,710.36/159,832.74 = 88,806.61/x
  3. Step 3: Cross multiply
    115,710.36x = 159,832.74 × 88,806.61
  4. Step 4: Simplify right side
    115,710.36x = 14,194,204,339.23
  5. Step 5: Solve for x
    x = 14,194,204,339.23/115,710.36
  6. Step 6: Final answer
    x = 122,670.13

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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.