Home / 151,021.23-208,452.60-100,042.26

Finding the Fourth Proportional to 151,021.23, 208,452.60 and 100,042.26

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Solution

The fourth proportional to 151,021.23, 208,452.60 and 100,042.26 is: 138,087.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,021.23 : 208,452.60 = 100,042.26 : x
  2. Step 2: Convert to fraction form
    151,021.23/208,452.60 = 100,042.26/x
  3. Step 3: Cross multiply
    151,021.23x = 208,452.60 × 100,042.26
  4. Step 4: Simplify right side
    151,021.23x = 20,854,069,206.88
  5. Step 5: Solve for x
    x = 20,854,069,206.88/151,021.23
  6. Step 6: Final answer
    x = 138,087.00

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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.