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Finding the Fourth Proportional to 147,606.60, 221,409.90 and 136,201.80

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Solution

The fourth proportional to 147,606.60, 221,409.90 and 136,201.80 is: 204,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,606.60 : 221,409.90 = 136,201.80 : x
  2. Step 2: Convert to fraction form
    147,606.60/221,409.90 = 136,201.80/x
  3. Step 3: Cross multiply
    147,606.60x = 221,409.90 × 136,201.80
  4. Step 4: Simplify right side
    147,606.60x = 30,156,426,917.82
  5. Step 5: Solve for x
    x = 30,156,426,917.82/147,606.60
  6. Step 6: Final answer
    x = 204,302.70

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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.