Home / 122,120.92-168,533.22-68,402.80

Finding the Fourth Proportional to 122,120.92, 168,533.22 and 68,402.80

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Solution

The fourth proportional to 122,120.92, 168,533.22 and 68,402.80 is: 94,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,120.92 : 168,533.22 = 68,402.80 : x
  2. Step 2: Convert to fraction form
    122,120.92/168,533.22 = 68,402.80/x
  3. Step 3: Cross multiply
    122,120.92x = 168,533.22 × 68,402.80
  4. Step 4: Simplify right side
    122,120.92x = 11,528,144,141.02
  5. Step 5: Solve for x
    x = 11,528,144,141.02/122,120.92
  6. Step 6: Final answer
    x = 94,399.42

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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.