Home / 281,282.07-421,955.91-112,861.20

Finding the Fourth Proportional to 281,282.07, 421,955.91 and 112,861.20

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Solution

The fourth proportional to 281,282.07, 421,955.91 and 112,861.20 is: 169,304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,282.07 : 421,955.91 = 112,861.20 : x
  2. Step 2: Convert to fraction form
    281,282.07/421,955.91 = 112,861.20/x
  3. Step 3: Cross multiply
    281,282.07x = 421,955.91 × 112,861.20
  4. Step 4: Simplify right side
    281,282.07x = 47,622,450,349.69
  5. Step 5: Solve for x
    x = 47,622,450,349.69/281,282.07
  6. Step 6: Final answer
    x = 169,304.96

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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.