Home / 122,020.61-168,391.96-68,305.31

Finding the Fourth Proportional to 122,020.61, 168,391.96 and 68,305.31

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Solution

The fourth proportional to 122,020.61, 168,391.96 and 68,305.31 is: 94,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,020.61 : 168,391.96 = 68,305.31 : x
  2. Step 2: Convert to fraction form
    122,020.61/168,391.96 = 68,305.31/x
  3. Step 3: Cross multiply
    122,020.61x = 168,391.96 × 68,305.31
  4. Step 4: Simplify right side
    122,020.61x = 11,502,064,187.35
  5. Step 5: Solve for x
    x = 11,502,064,187.35/122,020.61
  6. Step 6: Final answer
    x = 94,263.29

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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.