Home / 188,728.17-260,453.45-117,131.26

Finding the Fourth Proportional to 188,728.17, 260,453.45 and 117,131.26

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Solution

The fourth proportional to 188,728.17, 260,453.45 and 117,131.26 is: 161,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,728.17 : 260,453.45 = 117,131.26 : x
  2. Step 2: Convert to fraction form
    188,728.17/260,453.45 = 117,131.26/x
  3. Step 3: Cross multiply
    188,728.17x = 260,453.45 × 117,131.26
  4. Step 4: Simplify right side
    188,728.17x = 30,507,240,411.54
  5. Step 5: Solve for x
    x = 30,507,240,411.54/188,728.17
  6. Step 6: Final answer
    x = 161,646.46

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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.