Home / 150,172.55-207,238.22-82,189.51

Finding the Fourth Proportional to 150,172.55, 207,238.22 and 82,189.51

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Solution

The fourth proportional to 150,172.55, 207,238.22 and 82,189.51 is: 113,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,172.55 : 207,238.22 = 82,189.51 : x
  2. Step 2: Convert to fraction form
    150,172.55/207,238.22 = 82,189.51/x
  3. Step 3: Cross multiply
    150,172.55x = 207,238.22 × 82,189.51
  4. Step 4: Simplify right side
    150,172.55x = 17,032,807,755.07
  5. Step 5: Solve for x
    x = 17,032,807,755.07/150,172.55
  6. Step 6: Final answer
    x = 113,421.58

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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.