Home / 103,904.02-155,860.66-31,851.62

Finding the Fourth Proportional to 103,904.02, 155,860.66 and 31,851.62

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Solution

The fourth proportional to 103,904.02, 155,860.66 and 31,851.62 is: 47,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,904.02 : 155,860.66 = 31,851.62 : x
  2. Step 2: Convert to fraction form
    103,904.02/155,860.66 = 31,851.62/x
  3. Step 3: Cross multiply
    103,904.02x = 155,860.66 × 31,851.62
  4. Step 4: Simplify right side
    103,904.02x = 4,964,414,515.27
  5. Step 5: Solve for x
    x = 4,964,414,515.27/103,904.02
  6. Step 6: Final answer
    x = 47,778.85

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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.