Home / 188,729.30-260,455.01-117,132.39

Finding the Fourth Proportional to 188,729.30, 260,455.01 and 117,132.39

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Solution

The fourth proportional to 188,729.30, 260,455.01 and 117,132.39 is: 161,648.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,729.30 : 260,455.01 = 117,132.39 : x
  2. Step 2: Convert to fraction form
    188,729.30/260,455.01 = 117,132.39/x
  3. Step 3: Cross multiply
    188,729.30x = 260,455.01 × 117,132.39
  4. Step 4: Simplify right side
    188,729.30x = 30,507,715,920.84
  5. Step 5: Solve for x
    x = 30,507,715,920.84/188,729.30
  6. Step 6: Final answer
    x = 161,648.02

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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.