Home / 102,939.30-154,416.15-40,601.70

Finding the Fourth Proportional to 102,939.30, 154,416.15 and 40,601.70

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Solution

The fourth proportional to 102,939.30, 154,416.15 and 40,601.70 is: 60,905.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,939.30 : 154,416.15 = 40,601.70 : x
  2. Step 2: Convert to fraction form
    102,939.30/154,416.15 = 40,601.70/x
  3. Step 3: Cross multiply
    102,939.30x = 154,416.15 × 40,601.70
  4. Step 4: Simplify right side
    102,939.30x = 6,269,558,197.46
  5. Step 5: Solve for x
    x = 6,269,558,197.46/102,939.30
  6. Step 6: Final answer
    x = 60,905.39

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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.