Home / 103,919.06-155,919.76-54,030.62

Finding the Fourth Proportional to 103,919.06, 155,919.76 and 54,030.62

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Solution

The fourth proportional to 103,919.06, 155,919.76 and 54,030.62 is: 81,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,919.06 : 155,919.76 = 54,030.62 : x
  2. Step 2: Convert to fraction form
    103,919.06/155,919.76 = 54,030.62/x
  3. Step 3: Cross multiply
    103,919.06x = 155,919.76 × 54,030.62
  4. Step 4: Simplify right side
    103,919.06x = 8,424,441,303.05
  5. Step 5: Solve for x
    x = 8,424,441,303.05/103,919.06
  6. Step 6: Final answer
    x = 81,067.34

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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.