Home / 122,138.04-168,548.94-68,422.08

Finding the Fourth Proportional to 122,138.04, 168,548.94 and 68,422.08

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Solution

The fourth proportional to 122,138.04, 168,548.94 and 68,422.08 is: 94,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,138.04 : 168,548.94 = 68,422.08 : x
  2. Step 2: Convert to fraction form
    122,138.04/168,548.94 = 68,422.08/x
  3. Step 3: Cross multiply
    122,138.04x = 168,548.94 × 68,422.08
  4. Step 4: Simplify right side
    122,138.04x = 11,532,469,056.60
  5. Step 5: Solve for x
    x = 11,532,469,056.60/122,138.04
  6. Step 6: Final answer
    x = 94,421.60

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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.