Home / 127,784.07-191,430.44-71,453.33

Finding the Fourth Proportional to 127,784.07, 191,430.44 and 71,453.33

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Solution

The fourth proportional to 127,784.07, 191,430.44 and 71,453.33 is: 107,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,784.07 : 191,430.44 = 71,453.33 : x
  2. Step 2: Convert to fraction form
    127,784.07/191,430.44 = 71,453.33/x
  3. Step 3: Cross multiply
    127,784.07x = 191,430.44 × 71,453.33
  4. Step 4: Simplify right side
    127,784.07x = 13,678,341,086.95
  5. Step 5: Solve for x
    x = 13,678,341,086.95/127,784.07
  6. Step 6: Final answer
    x = 107,042.62

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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.