Home / 103,394.74-155,091.54-40,258.78

Finding the Fourth Proportional to 103,394.74, 155,091.54 and 40,258.78

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Solution

The fourth proportional to 103,394.74, 155,091.54 and 40,258.78 is: 60,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,394.74 : 155,091.54 = 40,258.78 : x
  2. Step 2: Convert to fraction form
    103,394.74/155,091.54 = 40,258.78/x
  3. Step 3: Cross multiply
    103,394.74x = 155,091.54 × 40,258.78
  4. Step 4: Simplify right side
    103,394.74x = 6,243,796,188.72
  5. Step 5: Solve for x
    x = 6,243,796,188.72/103,394.74
  6. Step 6: Final answer
    x = 60,387.95

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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.