Home / 121,941.62-168,285.98-68,223.44

Finding the Fourth Proportional to 121,941.62, 168,285.98 and 68,223.44

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Solution

The fourth proportional to 121,941.62, 168,285.98 and 68,223.44 is: 94,152.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,941.62 : 168,285.98 = 68,223.44 : x
  2. Step 2: Convert to fraction form
    121,941.62/168,285.98 = 68,223.44/x
  3. Step 3: Cross multiply
    121,941.62x = 168,285.98 × 68,223.44
  4. Step 4: Simplify right side
    121,941.62x = 11,481,048,459.37
  5. Step 5: Solve for x
    x = 11,481,048,459.37/121,941.62
  6. Step 6: Final answer
    x = 94,152.01

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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.