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Finding the Fourth Proportional to 134,007.60, 200,838.60 and 102,687.60

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Solution

The fourth proportional to 134,007.60, 200,838.60 and 102,687.60 is: 153,898.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,007.60 : 200,838.60 = 102,687.60 : x
  2. Step 2: Convert to fraction form
    134,007.60/200,838.60 = 102,687.60/x
  3. Step 3: Cross multiply
    134,007.60x = 200,838.60 × 102,687.60
  4. Step 4: Simplify right side
    134,007.60x = 20,623,633,821.36
  5. Step 5: Solve for x
    x = 20,623,633,821.36/134,007.60
  6. Step 6: Final answer
    x = 153,898.99

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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.