Home / 103,404.85-155,010.31-40,265.48

Finding the Fourth Proportional to 103,404.85, 155,010.31 and 40,265.48

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Solution

The fourth proportional to 103,404.85, 155,010.31 and 40,265.48 is: 60,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,404.85 : 155,010.31 = 40,265.48 : x
  2. Step 2: Convert to fraction form
    103,404.85/155,010.31 = 40,265.48/x
  3. Step 3: Cross multiply
    103,404.85x = 155,010.31 × 40,265.48
  4. Step 4: Simplify right side
    103,404.85x = 6,241,564,823.96
  5. Step 5: Solve for x
    x = 6,241,564,823.96/103,404.85
  6. Step 6: Final answer
    x = 60,360.47

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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.