Home / 101,140.78-151,661.24-31,003.18

Finding the Fourth Proportional to 101,140.78, 151,661.24 and 31,003.18

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Solution

The fourth proportional to 101,140.78, 151,661.24 and 31,003.18 is: 46,489.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,140.78 : 151,661.24 = 31,003.18 : x
  2. Step 2: Convert to fraction form
    101,140.78/151,661.24 = 31,003.18/x
  3. Step 3: Cross multiply
    101,140.78x = 151,661.24 × 31,003.18
  4. Step 4: Simplify right side
    101,140.78x = 4,701,980,722.74
  5. Step 5: Solve for x
    x = 4,701,980,722.74/101,140.78
  6. Step 6: Final answer
    x = 46,489.46

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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.