Home / 105,769.14-158,668.56-30,894.78

Finding the Fourth Proportional to 105,769.14, 158,668.56 and 30,894.78

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Solution

The fourth proportional to 105,769.14, 158,668.56 and 30,894.78 is: 46,346.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,769.14 : 158,668.56 = 30,894.78 : x
  2. Step 2: Convert to fraction form
    105,769.14/158,668.56 = 30,894.78/x
  3. Step 3: Cross multiply
    105,769.14x = 158,668.56 × 30,894.78
  4. Step 4: Simplify right side
    105,769.14x = 4,902,030,254.12
  5. Step 5: Solve for x
    x = 4,902,030,254.12/105,769.14
  6. Step 6: Final answer
    x = 46,346.51

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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.