Home / 122,786.31-169,443.89-68,337.57

Finding the Fourth Proportional to 122,786.31, 169,443.89 and 68,337.57

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Solution

The fourth proportional to 122,786.31, 169,443.89 and 68,337.57 is: 94,305.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,786.31 : 169,443.89 = 68,337.57 : x
  2. Step 2: Convert to fraction form
    122,786.31/169,443.89 = 68,337.57/x
  3. Step 3: Cross multiply
    122,786.31x = 169,443.89 × 68,337.57
  4. Step 4: Simplify right side
    122,786.31x = 11,579,383,352.26
  5. Step 5: Solve for x
    x = 11,579,383,352.26/122,786.31
  6. Step 6: Final answer
    x = 94,305.17

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1.5x scale

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.