Home / 192,845.34-289,118.16-72,900.36

Finding the Fourth Proportional to 192,845.34, 289,118.16 and 72,900.36

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Solution

The fourth proportional to 192,845.34, 289,118.16 and 72,900.36 is: 109,293.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,845.34 : 289,118.16 = 72,900.36 : x
  2. Step 2: Convert to fraction form
    192,845.34/289,118.16 = 72,900.36/x
  3. Step 3: Cross multiply
    192,845.34x = 289,118.16 × 72,900.36
  4. Step 4: Simplify right side
    192,845.34x = 21,076,817,946.54
  5. Step 5: Solve for x
    x = 21,076,817,946.54/192,845.34
  6. Step 6: Final answer
    x = 109,293.89

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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.