Home / 101,238.18-151,857.27-30,161.90

Finding the Fourth Proportional to 101,238.18, 151,857.27 and 30,161.90

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Solution

The fourth proportional to 101,238.18, 151,857.27 and 30,161.90 is: 45,242.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,238.18 : 151,857.27 = 30,161.90 : x
  2. Step 2: Convert to fraction form
    101,238.18/151,857.27 = 30,161.90/x
  3. Step 3: Cross multiply
    101,238.18x = 151,857.27 × 30,161.90
  4. Step 4: Simplify right side
    101,238.18x = 4,580,303,032.73
  5. Step 5: Solve for x
    x = 4,580,303,032.73/101,238.18
  6. Step 6: Final answer
    x = 45,242.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.