Home / 127,628.40-191,460.06-43,365.90

Finding the Fourth Proportional to 127,628.40, 191,460.06 and 43,365.90

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Solution

The fourth proportional to 127,628.40, 191,460.06 and 43,365.90 is: 65,054.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,628.40 : 191,460.06 = 43,365.90 : x
  2. Step 2: Convert to fraction form
    127,628.40/191,460.06 = 43,365.90/x
  3. Step 3: Cross multiply
    127,628.40x = 191,460.06 × 43,365.90
  4. Step 4: Simplify right side
    127,628.40x = 8,302,837,815.95
  5. Step 5: Solve for x
    x = 8,302,837,815.95/127,628.40
  6. Step 6: Final answer
    x = 65,054.78

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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.