Home / 103,816.15-155,620.54-51,263.35

Finding the Fourth Proportional to 103,816.15, 155,620.54 and 51,263.35

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Solution

The fourth proportional to 103,816.15, 155,620.54 and 51,263.35 is: 76,843.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,816.15 : 155,620.54 = 51,263.35 : x
  2. Step 2: Convert to fraction form
    103,816.15/155,620.54 = 51,263.35/x
  3. Step 3: Cross multiply
    103,816.15x = 155,620.54 × 51,263.35
  4. Step 4: Simplify right side
    103,816.15x = 7,977,630,209.21
  5. Step 5: Solve for x
    x = 7,977,630,209.21/103,816.15
  6. Step 6: Final answer
    x = 76,843.83

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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.