Home / 245,520.85-368,371.23-103,401.90

Finding the Fourth Proportional to 245,520.85, 368,371.23 and 103,401.90

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Solution

The fourth proportional to 245,520.85, 368,371.23 and 103,401.90 is: 155,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,520.85 : 368,371.23 = 103,401.90 : x
  2. Step 2: Convert to fraction form
    245,520.85/368,371.23 = 103,401.90/x
  3. Step 3: Cross multiply
    245,520.85x = 368,371.23 × 103,401.90
  4. Step 4: Simplify right side
    245,520.85x = 38,090,285,087.34
  5. Step 5: Solve for x
    x = 38,090,285,087.34/245,520.85
  6. Step 6: Final answer
    x = 155,140.73

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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.