Home / 132,921.80-183,493.51-81,943.64

Finding the Fourth Proportional to 132,921.80, 183,493.51 and 81,943.64

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Solution

The fourth proportional to 132,921.80, 183,493.51 and 81,943.64 is: 113,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,921.80 : 183,493.51 = 81,943.64 : x
  2. Step 2: Convert to fraction form
    132,921.80/183,493.51 = 81,943.64/x
  3. Step 3: Cross multiply
    132,921.80x = 183,493.51 × 81,943.64
  4. Step 4: Simplify right side
    132,921.80x = 15,036,125,003.45
  5. Step 5: Solve for x
    x = 15,036,125,003.45/132,921.80
  6. Step 6: Final answer
    x = 113,120.09

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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.