Home / 127,486.46-191,143.41-71,365.32

Finding the Fourth Proportional to 127,486.46, 191,143.41 and 71,365.32

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Solution

The fourth proportional to 127,486.46, 191,143.41 and 71,365.32 is: 106,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,486.46 : 191,143.41 = 71,365.32 : x
  2. Step 2: Convert to fraction form
    127,486.46/191,143.41 = 71,365.32/x
  3. Step 3: Cross multiply
    127,486.46x = 191,143.41 × 71,365.32
  4. Step 4: Simplify right side
    127,486.46x = 13,641,010,620.54
  5. Step 5: Solve for x
    x = 13,641,010,620.54/127,486.46
  6. Step 6: Final answer
    x = 106,999.68

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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.