Home / 189,384.84-261,343.44-104,500.80

Finding the Fourth Proportional to 189,384.84, 261,343.44 and 104,500.80

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Solution

The fourth proportional to 189,384.84, 261,343.44 and 104,500.80 is: 144,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,384.84 : 261,343.44 = 104,500.80 : x
  2. Step 2: Convert to fraction form
    189,384.84/261,343.44 = 104,500.80/x
  3. Step 3: Cross multiply
    189,384.84x = 261,343.44 × 104,500.80
  4. Step 4: Simplify right side
    189,384.84x = 27,310,598,554.75
  5. Step 5: Solve for x
    x = 27,310,598,554.75/189,384.84
  6. Step 6: Final answer
    x = 144,206.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.