Home / 122,486.36-169,018.12-68,777.24

Finding the Fourth Proportional to 122,486.36, 169,018.12 and 68,777.24

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Solution

The fourth proportional to 122,486.36, 169,018.12 and 68,777.24 is: 94,905.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,486.36 : 169,018.12 = 68,777.24 : x
  2. Step 2: Convert to fraction form
    122,486.36/169,018.12 = 68,777.24/x
  3. Step 3: Cross multiply
    122,486.36x = 169,018.12 × 68,777.24
  4. Step 4: Simplify right side
    122,486.36x = 11,624,599,803.59
  5. Step 5: Solve for x
    x = 11,624,599,803.59/122,486.36
  6. Step 6: Final answer
    x = 94,905.26

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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.