Home / 126,983.80-190,914.90-118,761.40

Finding the Fourth Proportional to 126,983.80, 190,914.90 and 118,761.40

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Solution

The fourth proportional to 126,983.80, 190,914.90 and 118,761.40 is: 178,552.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,983.80 : 190,914.90 = 118,761.40 : x
  2. Step 2: Convert to fraction form
    126,983.80/190,914.90 = 118,761.40/x
  3. Step 3: Cross multiply
    126,983.80x = 190,914.90 × 118,761.40
  4. Step 4: Simplify right side
    126,983.80x = 22,673,320,804.86
  5. Step 5: Solve for x
    x = 22,673,320,804.86/126,983.80
  6. Step 6: Final answer
    x = 178,552.86

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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.