Home / 154,885.48-213,817.04-103,879.56

Finding the Fourth Proportional to 154,885.48, 213,817.04 and 103,879.56

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Solution

The fourth proportional to 154,885.48, 213,817.04 and 103,879.56 is: 143,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,885.48 : 213,817.04 = 103,879.56 : x
  2. Step 2: Convert to fraction form
    154,885.48/213,817.04 = 103,879.56/x
  3. Step 3: Cross multiply
    154,885.48x = 213,817.04 × 103,879.56
  4. Step 4: Simplify right side
    154,885.48x = 22,211,220,035.70
  5. Step 5: Solve for x
    x = 22,211,220,035.70/154,885.48
  6. Step 6: Final answer
    x = 143,404.15

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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.