Home / 103,782.42-155,569.60-40,515.55

Finding the Fourth Proportional to 103,782.42, 155,569.60 and 40,515.55

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Solution

The fourth proportional to 103,782.42, 155,569.60 and 40,515.55 is: 60,732.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,782.42 : 155,569.60 = 40,515.55 : x
  2. Step 2: Convert to fraction form
    103,782.42/155,569.60 = 40,515.55/x
  3. Step 3: Cross multiply
    103,782.42x = 155,569.60 × 40,515.55
  4. Step 4: Simplify right side
    103,782.42x = 6,302,987,907.28
  5. Step 5: Solve for x
    x = 6,302,987,907.28/103,782.42
  6. Step 6: Final answer
    x = 60,732.71

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1.5x scale

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.