Home / 102,938.90-154,408.35-40,601.30

Finding the Fourth Proportional to 102,938.90, 154,408.35 and 40,601.30

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Solution

The fourth proportional to 102,938.90, 154,408.35 and 40,601.30 is: 60,901.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,938.90 : 154,408.35 = 40,601.30 : x
  2. Step 2: Convert to fraction form
    102,938.90/154,408.35 = 40,601.30/x
  3. Step 3: Cross multiply
    102,938.90x = 154,408.35 × 40,601.30
  4. Step 4: Simplify right side
    102,938.90x = 6,269,179,740.86
  5. Step 5: Solve for x
    x = 6,269,179,740.86/102,938.90
  6. Step 6: Final answer
    x = 60,901.95

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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.