Home / 190,614.64-263,048.46-105,731.70

Finding the Fourth Proportional to 190,614.64, 263,048.46 and 105,731.70

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Solution

The fourth proportional to 190,614.64, 263,048.46 and 105,731.70 is: 145,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,614.64 : 263,048.46 = 105,731.70 : x
  2. Step 2: Convert to fraction form
    190,614.64/263,048.46 = 105,731.70/x
  3. Step 3: Cross multiply
    190,614.64x = 263,048.46 × 105,731.70
  4. Step 4: Simplify right side
    190,614.64x = 27,812,560,858.18
  5. Step 5: Solve for x
    x = 27,812,560,858.18/190,614.64
  6. Step 6: Final answer
    x = 145,909.89

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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.