Home / 133,128.36-199,721.34-61,998.12

Finding the Fourth Proportional to 133,128.36, 199,721.34 and 61,998.12

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Solution

The fourth proportional to 133,128.36, 199,721.34 and 61,998.12 is: 93,010.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,128.36 : 199,721.34 = 61,998.12 : x
  2. Step 2: Convert to fraction form
    133,128.36/199,721.34 = 61,998.12/x
  3. Step 3: Cross multiply
    133,128.36x = 199,721.34 × 61,998.12
  4. Step 4: Simplify right side
    133,128.36x = 12,382,347,603.88
  5. Step 5: Solve for x
    x = 12,382,347,603.88/133,128.36
  6. Step 6: Final answer
    x = 93,010.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.