Home / 127,084.36-190,584.78-42,821.84

Finding the Fourth Proportional to 127,084.36, 190,584.78 and 42,821.84

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Solution

The fourth proportional to 127,084.36, 190,584.78 and 42,821.84 is: 64,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,084.36 : 190,584.78 = 42,821.84 : x
  2. Step 2: Convert to fraction form
    127,084.36/190,584.78 = 42,821.84/x
  3. Step 3: Cross multiply
    127,084.36x = 190,584.78 × 42,821.84
  4. Step 4: Simplify right side
    127,084.36x = 8,161,190,955.60
  5. Step 5: Solve for x
    x = 8,161,190,955.60/127,084.36
  6. Step 6: Final answer
    x = 64,218.69

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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.