Home / 136,430.25-188,266.43-75,174.54

Finding the Fourth Proportional to 136,430.25, 188,266.43 and 75,174.54

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Solution

The fourth proportional to 136,430.25, 188,266.43 and 75,174.54 is: 103,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,430.25 : 188,266.43 = 75,174.54 : x
  2. Step 2: Convert to fraction form
    136,430.25/188,266.43 = 75,174.54/x
  3. Step 3: Cross multiply
    136,430.25x = 188,266.43 × 75,174.54
  4. Step 4: Simplify right side
    136,430.25x = 14,152,841,896.82
  5. Step 5: Solve for x
    x = 14,152,841,896.82/136,430.25
  6. Step 6: Final answer
    x = 103,736.83

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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.