Home / 245,309.85-368,107.55-103,144.83

Finding the Fourth Proportional to 245,309.85, 368,107.55 and 103,144.83

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Solution

The fourth proportional to 245,309.85, 368,107.55 and 103,144.83 is: 154,777.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,309.85 : 368,107.55 = 103,144.83 : x
  2. Step 2: Convert to fraction form
    245,309.85/368,107.55 = 103,144.83/x
  3. Step 3: Cross multiply
    245,309.85x = 368,107.55 × 103,144.83
  4. Step 4: Simplify right side
    245,309.85x = 37,968,390,666.47
  5. Step 5: Solve for x
    x = 37,968,390,666.47/245,309.85
  6. Step 6: Final answer
    x = 154,777.28

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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.