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Finding the Fourth Proportional to 115,124.67, 158,876.95 and 64,137.37

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Solution

The fourth proportional to 115,124.67, 158,876.95 and 64,137.37 is: 88,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,124.67 : 158,876.95 = 64,137.37 : x
  2. Step 2: Convert to fraction form
    115,124.67/158,876.95 = 64,137.37/x
  3. Step 3: Cross multiply
    115,124.67x = 158,876.95 × 64,137.37
  4. Step 4: Simplify right side
    115,124.67x = 10,189,949,566.28
  5. Step 5: Solve for x
    x = 10,189,949,566.28/115,124.67
  6. Step 6: Final answer
    x = 88,512.30

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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.