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Finding the Fourth Proportional to 114,991.88, 158,686.98 and 64,004

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Solution

The fourth proportional to 114,991.88, 158,686.98 and 64,004 is: 88,324.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,991.88 : 158,686.98 = 64,004 : x
  2. Step 2: Convert to fraction form
    114,991.88/158,686.98 = 64,004/x
  3. Step 3: Cross multiply
    114,991.88x = 158,686.98 × 64,004
  4. Step 4: Simplify right side
    114,991.88x = 10,156,601,467.92
  5. Step 5: Solve for x
    x = 10,156,601,467.92/114,991.88
  6. Step 6: Final answer
    x = 88,324.51

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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.