Home / 127,069.07-190,563.46-42,809.60

Finding the Fourth Proportional to 127,069.07, 190,563.46 and 42,809.60

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Solution

The fourth proportional to 127,069.07, 190,563.46 and 42,809.60 is: 64,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,069.07 : 190,563.46 = 42,809.60 : x
  2. Step 2: Convert to fraction form
    127,069.07/190,563.46 = 42,809.60/x
  3. Step 3: Cross multiply
    127,069.07x = 190,563.46 × 42,809.60
  4. Step 4: Simplify right side
    127,069.07x = 8,157,945,390.19
  5. Step 5: Solve for x
    x = 8,157,945,390.19/127,069.07
  6. Step 6: Final answer
    x = 64,200.87

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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.