Home / 101,021.16-151,575.44-54,219.36

Finding the Fourth Proportional to 101,021.16, 151,575.44 and 54,219.36

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Solution

The fourth proportional to 101,021.16, 151,575.44 and 54,219.36 is: 81,352.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,021.16 : 151,575.44 = 54,219.36 : x
  2. Step 2: Convert to fraction form
    101,021.16/151,575.44 = 54,219.36/x
  3. Step 3: Cross multiply
    101,021.16x = 151,575.44 × 54,219.36
  4. Step 4: Simplify right side
    101,021.16x = 8,218,323,348.52
  5. Step 5: Solve for x
    x = 8,218,323,348.52/101,021.16
  6. Step 6: Final answer
    x = 81,352.49

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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.