Home / 145,552.51-200,844.97-81,005.60

Finding the Fourth Proportional to 145,552.51, 200,844.97 and 81,005.60

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Solution

The fourth proportional to 145,552.51, 200,844.97 and 81,005.60 is: 111,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,552.51 : 200,844.97 = 81,005.60 : x
  2. Step 2: Convert to fraction form
    145,552.51/200,844.97 = 81,005.60/x
  3. Step 3: Cross multiply
    145,552.51x = 200,844.97 × 81,005.60
  4. Step 4: Simplify right side
    145,552.51x = 16,269,567,601.43
  5. Step 5: Solve for x
    x = 16,269,567,601.43/145,552.51
  6. Step 6: Final answer
    x = 111,777.99

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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.