Home / 117,201.03-161,720.06-66,200.19

Finding the Fourth Proportional to 117,201.03, 161,720.06 and 66,200.19

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Solution

The fourth proportional to 117,201.03, 161,720.06 and 66,200.19 is: 91,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,201.03 : 161,720.06 = 66,200.19 : x
  2. Step 2: Convert to fraction form
    117,201.03/161,720.06 = 66,200.19/x
  3. Step 3: Cross multiply
    117,201.03x = 161,720.06 × 66,200.19
  4. Step 4: Simplify right side
    117,201.03x = 10,705,898,367.81
  5. Step 5: Solve for x
    x = 10,705,898,367.81/117,201.03
  6. Step 6: Final answer
    x = 91,346.45

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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.