Home / 105,363.64-158,021.79-30,467.08

Finding the Fourth Proportional to 105,363.64, 158,021.79 and 30,467.08

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Solution

The fourth proportional to 105,363.64, 158,021.79 and 30,467.08 is: 45,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,363.64 : 158,021.79 = 30,467.08 : x
  2. Step 2: Convert to fraction form
    105,363.64/158,021.79 = 30,467.08/x
  3. Step 3: Cross multiply
    105,363.64x = 158,021.79 × 30,467.08
  4. Step 4: Simplify right side
    105,363.64x = 4,814,462,517.67
  5. Step 5: Solve for x
    x = 4,814,462,517.67/105,363.64
  6. Step 6: Final answer
    x = 45,693.78

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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.