Home / 111,481.47-153,800.63-63,709.19

Finding the Fourth Proportional to 111,481.47, 153,800.63 and 63,709.19

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Solution

The fourth proportional to 111,481.47, 153,800.63 and 63,709.19 is: 87,893.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,481.47 : 153,800.63 = 63,709.19 : x
  2. Step 2: Convert to fraction form
    111,481.47/153,800.63 = 63,709.19/x
  3. Step 3: Cross multiply
    111,481.47x = 153,800.63 × 63,709.19
  4. Step 4: Simplify right side
    111,481.47x = 9,798,512,789.79
  5. Step 5: Solve for x
    x = 9,798,512,789.79/111,481.47
  6. Step 6: Final answer
    x = 87,893.65

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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.