Home / 117,119.56-161,623.64-63,403.38

Finding the Fourth Proportional to 117,119.56, 161,623.64 and 63,403.38

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Solution

The fourth proportional to 117,119.56, 161,623.64 and 63,403.38 is: 87,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,119.56 : 161,623.64 = 63,403.38 : x
  2. Step 2: Convert to fraction form
    117,119.56/161,623.64 = 63,403.38/x
  3. Step 3: Cross multiply
    117,119.56x = 161,623.64 × 63,403.38
  4. Step 4: Simplify right side
    117,119.56x = 10,247,485,063.90
  5. Step 5: Solve for x
    x = 10,247,485,063.90/117,119.56
  6. Step 6: Final answer
    x = 87,495.93

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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.