Home / 122,448.66-168,965.64-68,721.36

Finding the Fourth Proportional to 122,448.66, 168,965.64 and 68,721.36

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Solution

The fourth proportional to 122,448.66, 168,965.64 and 68,721.36 is: 94,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,448.66 : 168,965.64 = 68,721.36 : x
  2. Step 2: Convert to fraction form
    122,448.66/168,965.64 = 68,721.36/x
  3. Step 3: Cross multiply
    122,448.66x = 168,965.64 × 68,721.36
  4. Step 4: Simplify right side
    122,448.66x = 11,611,548,574.07
  5. Step 5: Solve for x
    x = 11,611,548,574.07/122,448.66
  6. Step 6: Final answer
    x = 94,827.89

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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.