Home / 92,410.09-137,946.64-81,200.05

Finding the Fourth Proportional to 92,410.09, 137,946.64 and 81,200.05

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Solution

The fourth proportional to 92,410.09, 137,946.64 and 81,200.05 is: 121,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,410.09 : 137,946.64 = 81,200.05 : x
  2. Step 2: Convert to fraction form
    92,410.09/137,946.64 = 81,200.05/x
  3. Step 3: Cross multiply
    92,410.09x = 137,946.64 × 81,200.05
  4. Step 4: Simplify right side
    92,410.09x = 11,201,273,659.33
  5. Step 5: Solve for x
    x = 11,201,273,659.33/92,410.09
  6. Step 6: Final answer
    x = 121,212.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.