Home / 118,180.80-163,144.67-75,763.53

Finding the Fourth Proportional to 118,180.80, 163,144.67 and 75,763.53

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Solution

The fourth proportional to 118,180.80, 163,144.67 and 75,763.53 is: 104,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,180.80 : 163,144.67 = 75,763.53 : x
  2. Step 2: Convert to fraction form
    118,180.80/163,144.67 = 75,763.53/x
  3. Step 3: Cross multiply
    118,180.80x = 163,144.67 × 75,763.53
  4. Step 4: Simplify right side
    118,180.80x = 12,360,415,721.07
  5. Step 5: Solve for x
    x = 12,360,415,721.07/118,180.80
  6. Step 6: Final answer
    x = 104,589.03

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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.