Home / 204,063.40-306,095.10-128,939.95

Finding the Fourth Proportional to 204,063.40, 306,095.10 and 128,939.95

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Solution

The fourth proportional to 204,063.40, 306,095.10 and 128,939.95 is: 193,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,063.40 : 306,095.10 = 128,939.95 : x
  2. Step 2: Convert to fraction form
    204,063.40/306,095.10 = 128,939.95/x
  3. Step 3: Cross multiply
    204,063.40x = 306,095.10 × 128,939.95
  4. Step 4: Simplify right side
    204,063.40x = 39,467,886,889.25
  5. Step 5: Solve for x
    x = 39,467,886,889.25/204,063.40
  6. Step 6: Final answer
    x = 193,409.93

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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.