Home / 126,975.06-190,466.10-70,783.74

Finding the Fourth Proportional to 126,975.06, 190,466.10 and 70,783.74

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Solution

The fourth proportional to 126,975.06, 190,466.10 and 70,783.74 is: 106,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,975.06 : 190,466.10 = 70,783.74 : x
  2. Step 2: Convert to fraction form
    126,975.06/190,466.10 = 70,783.74/x
  3. Step 3: Cross multiply
    126,975.06x = 190,466.10 × 70,783.74
  4. Step 4: Simplify right side
    126,975.06x = 13,481,902,901.21
  5. Step 5: Solve for x
    x = 13,481,902,901.21/126,975.06
  6. Step 6: Final answer
    x = 106,177.57

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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.