Home / 140,580.36-194,000.67-76,918.41

Finding the Fourth Proportional to 140,580.36, 194,000.67 and 76,918.41

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Solution

The fourth proportional to 140,580.36, 194,000.67 and 76,918.41 is: 106,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,580.36 : 194,000.67 = 76,918.41 : x
  2. Step 2: Convert to fraction form
    140,580.36/194,000.67 = 76,918.41/x
  3. Step 3: Cross multiply
    140,580.36x = 194,000.67 × 76,918.41
  4. Step 4: Simplify right side
    140,580.36x = 14,922,223,075.33
  5. Step 5: Solve for x
    x = 14,922,223,075.33/140,580.36
  6. Step 6: Final answer
    x = 106,147.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.