Home / 121,907.79-168,224.94-68,183.55

Finding the Fourth Proportional to 121,907.79, 168,224.94 and 68,183.55

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Solution

The fourth proportional to 121,907.79, 168,224.94 and 68,183.55 is: 94,088.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,907.79 : 168,224.94 = 68,183.55 : x
  2. Step 2: Convert to fraction form
    121,907.79/168,224.94 = 68,183.55/x
  3. Step 3: Cross multiply
    121,907.79x = 168,224.94 × 68,183.55
  4. Step 4: Simplify right side
    121,907.79x = 11,470,173,607.74
  5. Step 5: Solve for x
    x = 11,470,173,607.74/121,907.79
  6. Step 6: Final answer
    x = 94,088.93

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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.