Home / 215,986.23-298,054.04-117,865.71

Finding the Fourth Proportional to 215,986.23, 298,054.04 and 117,865.71

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Solution

The fourth proportional to 215,986.23, 298,054.04 and 117,865.71 is: 162,650.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,986.23 : 298,054.04 = 117,865.71 : x
  2. Step 2: Convert to fraction form
    215,986.23/298,054.04 = 117,865.71/x
  3. Step 3: Cross multiply
    215,986.23x = 298,054.04 × 117,865.71
  4. Step 4: Simplify right side
    215,986.23x = 35,130,350,453.64
  5. Step 5: Solve for x
    x = 35,130,350,453.64/215,986.23
  6. Step 6: Final answer
    x = 162,650.88

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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.