Home / 153,004.23-211,144.41-85,021.29

Finding the Fourth Proportional to 153,004.23, 211,144.41 and 85,021.29

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Solution

The fourth proportional to 153,004.23, 211,144.41 and 85,021.29 is: 117,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,004.23 : 211,144.41 = 85,021.29 : x
  2. Step 2: Convert to fraction form
    153,004.23/211,144.41 = 85,021.29/x
  3. Step 3: Cross multiply
    153,004.23x = 211,144.41 × 85,021.29
  4. Step 4: Simplify right side
    153,004.23x = 17,951,770,114.49
  5. Step 5: Solve for x
    x = 17,951,770,114.49/153,004.23
  6. Step 6: Final answer
    x = 117,328.59

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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.