Home / 103,933.54-155,851.84-54,000.21

Finding the Fourth Proportional to 103,933.54, 155,851.84 and 54,000.21

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Solution

The fourth proportional to 103,933.54, 155,851.84 and 54,000.21 is: 80,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,933.54 : 155,851.84 = 54,000.21 : x
  2. Step 2: Convert to fraction form
    103,933.54/155,851.84 = 54,000.21/x
  3. Step 3: Cross multiply
    103,933.54x = 155,851.84 × 54,000.21
  4. Step 4: Simplify right side
    103,933.54x = 8,416,032,088.89
  5. Step 5: Solve for x
    x = 8,416,032,088.89/103,933.54
  6. Step 6: Final answer
    x = 80,975.13

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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.