Home / 245,310.85-368,109.05-103,145.83

Finding the Fourth Proportional to 245,310.85, 368,109.05 and 103,145.83

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Solution

The fourth proportional to 245,310.85, 368,109.05 and 103,145.83 is: 154,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,310.85 : 368,109.05 = 103,145.83 : x
  2. Step 2: Convert to fraction form
    245,310.85/368,109.05 = 103,145.83/x
  3. Step 3: Cross multiply
    245,310.85x = 368,109.05 × 103,145.83
  4. Step 4: Simplify right side
    245,310.85x = 37,968,913,492.76
  5. Step 5: Solve for x
    x = 37,968,913,492.76/245,310.85
  6. Step 6: Final answer
    x = 154,778.78

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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.