Home / 281,097.54-421,447.86-103,581.18

Finding the Fourth Proportional to 281,097.54, 421,447.86 and 103,581.18

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Solution

The fourth proportional to 281,097.54, 421,447.86 and 103,581.18 is: 155,298.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,097.54 : 421,447.86 = 103,581.18 : x
  2. Step 2: Convert to fraction form
    281,097.54/421,447.86 = 103,581.18/x
  3. Step 3: Cross multiply
    281,097.54x = 421,447.86 × 103,581.18
  4. Step 4: Simplify right side
    281,097.54x = 43,654,066,647.27
  5. Step 5: Solve for x
    x = 43,654,066,647.27/281,097.54
  6. Step 6: Final answer
    x = 155,298.64

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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.