Home / 122,309.98-168,719.43-76,971.04

Finding the Fourth Proportional to 122,309.98, 168,719.43 and 76,971.04

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Solution

The fourth proportional to 122,309.98, 168,719.43 and 76,971.04 is: 106,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,309.98 : 168,719.43 = 76,971.04 : x
  2. Step 2: Convert to fraction form
    122,309.98/168,719.43 = 76,971.04/x
  3. Step 3: Cross multiply
    122,309.98x = 168,719.43 × 76,971.04
  4. Step 4: Simplify right side
    122,309.98x = 12,986,509,995.31
  5. Step 5: Solve for x
    x = 12,986,509,995.31/122,309.98
  6. Step 6: Final answer
    x = 106,177.03

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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.