Home / 118,935.72-164,129.94-68,633.64

Finding the Fourth Proportional to 118,935.72, 164,129.94 and 68,633.64

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Solution

The fourth proportional to 118,935.72, 164,129.94 and 68,633.64 is: 94,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,935.72 : 164,129.94 = 68,633.64 : x
  2. Step 2: Convert to fraction form
    118,935.72/164,129.94 = 68,633.64/x
  3. Step 3: Cross multiply
    118,935.72x = 164,129.94 × 68,633.64
  4. Step 4: Simplify right side
    118,935.72x = 11,264,835,215.18
  5. Step 5: Solve for x
    x = 11,264,835,215.18/118,935.72
  6. Step 6: Final answer
    x = 94,713.64

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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.