Home / 188,421.37-260,022.52-102,381.03

Finding the Fourth Proportional to 188,421.37, 260,022.52 and 102,381.03

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Solution

The fourth proportional to 188,421.37, 260,022.52 and 102,381.03 is: 141,286.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,421.37 : 260,022.52 = 102,381.03 : x
  2. Step 2: Convert to fraction form
    188,421.37/260,022.52 = 102,381.03/x
  3. Step 3: Cross multiply
    188,421.37x = 260,022.52 × 102,381.03
  4. Step 4: Simplify right side
    188,421.37x = 26,621,373,548.77
  5. Step 5: Solve for x
    x = 26,621,373,548.77/188,421.37
  6. Step 6: Final answer
    x = 141,286.38

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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.