Home / 105,628.80-158,451.48-30,750.06

Finding the Fourth Proportional to 105,628.80, 158,451.48 and 30,750.06

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Solution

The fourth proportional to 105,628.80, 158,451.48 and 30,750.06 is: 46,127.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,628.80 : 158,451.48 = 30,750.06 : x
  2. Step 2: Convert to fraction form
    105,628.80/158,451.48 = 30,750.06/x
  3. Step 3: Cross multiply
    105,628.80x = 158,451.48 × 30,750.06
  4. Step 4: Simplify right side
    105,628.80x = 4,872,392,517.09
  5. Step 5: Solve for x
    x = 4,872,392,517.09/105,628.80
  6. Step 6: Final answer
    x = 46,127.50

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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.