Home / 122,015.16-168,389.28-68,298.80

Finding the Fourth Proportional to 122,015.16, 168,389.28 and 68,298.80

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Solution

The fourth proportional to 122,015.16, 168,389.28 and 68,298.80 is: 94,257.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,015.16 : 168,389.28 = 68,298.80 : x
  2. Step 2: Convert to fraction form
    122,015.16/168,389.28 = 68,298.80/x
  3. Step 3: Cross multiply
    122,015.16x = 168,389.28 × 68,298.80
  4. Step 4: Simplify right side
    122,015.16x = 11,500,784,914.92
  5. Step 5: Solve for x
    x = 11,500,784,914.92/122,015.16
  6. Step 6: Final answer
    x = 94,257.02

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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.