Home / 190,305.88-262,618.50-105,423.64

Finding the Fourth Proportional to 190,305.88, 262,618.50 and 105,423.64

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Solution

The fourth proportional to 190,305.88, 262,618.50 and 105,423.64 is: 145,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,305.88 : 262,618.50 = 105,423.64 : x
  2. Step 2: Convert to fraction form
    190,305.88/262,618.50 = 105,423.64/x
  3. Step 3: Cross multiply
    190,305.88x = 262,618.50 × 105,423.64
  4. Step 4: Simplify right side
    190,305.88x = 27,686,198,201.34
  5. Step 5: Solve for x
    x = 27,686,198,201.34/190,305.88
  6. Step 6: Final answer
    x = 145,482.62

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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.