Home / 127,268.51-190,901.55-77,362.39

Finding the Fourth Proportional to 127,268.51, 190,901.55 and 77,362.39

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Solution

The fourth proportional to 127,268.51, 190,901.55 and 77,362.39 is: 116,042.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,268.51 : 190,901.55 = 77,362.39 : x
  2. Step 2: Convert to fraction form
    127,268.51/190,901.55 = 77,362.39/x
  3. Step 3: Cross multiply
    127,268.51x = 190,901.55 × 77,362.39
  4. Step 4: Simplify right side
    127,268.51x = 14,768,599,208.20
  5. Step 5: Solve for x
    x = 14,768,599,208.20/127,268.51
  6. Step 6: Final answer
    x = 116,042.84

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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.