Home / 135,915.85-187,556.43-75,482.65

Finding the Fourth Proportional to 135,915.85, 187,556.43 and 75,482.65

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Solution

The fourth proportional to 135,915.85, 187,556.43 and 75,482.65 is: 104,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,915.85 : 187,556.43 = 75,482.65 : x
  2. Step 2: Convert to fraction form
    135,915.85/187,556.43 = 75,482.65/x
  3. Step 3: Cross multiply
    135,915.85x = 187,556.43 × 75,482.65
  4. Step 4: Simplify right side
    135,915.85x = 14,157,256,360.94
  5. Step 5: Solve for x
    x = 14,157,256,360.94/135,915.85
  6. Step 6: Final answer
    x = 104,161.92

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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.