Home / 117,003.21-161,450.52-66,012.96

Finding the Fourth Proportional to 117,003.21, 161,450.52 and 66,012.96

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Solution

The fourth proportional to 117,003.21, 161,450.52 and 66,012.96 is: 91,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,003.21 : 161,450.52 = 66,012.96 : x
  2. Step 2: Convert to fraction form
    117,003.21/161,450.52 = 66,012.96/x
  3. Step 3: Cross multiply
    117,003.21x = 161,450.52 × 66,012.96
  4. Step 4: Simplify right side
    117,003.21x = 10,657,826,718.74
  5. Step 5: Solve for x
    x = 10,657,826,718.74/117,003.21
  6. Step 6: Final answer
    x = 91,090.04

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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.