Home / 122,511.40-169,052.58-68,802.28

Finding the Fourth Proportional to 122,511.40, 169,052.58 and 68,802.28

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Solution

The fourth proportional to 122,511.40, 169,052.58 and 68,802.28 is: 94,939.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,511.40 : 169,052.58 = 68,802.28 : x
  2. Step 2: Convert to fraction form
    122,511.40/169,052.58 = 68,802.28/x
  3. Step 3: Cross multiply
    122,511.40x = 169,052.58 × 68,802.28
  4. Step 4: Simplify right side
    122,511.40x = 11,631,202,943.88
  5. Step 5: Solve for x
    x = 11,631,202,943.88/122,511.40
  6. Step 6: Final answer
    x = 94,939.76

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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.