Home / 281,304.12-421,993.26-91,698.06

Finding the Fourth Proportional to 281,304.12, 421,993.26 and 91,698.06

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Solution

The fourth proportional to 281,304.12, 421,993.26 and 91,698.06 is: 137,559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,304.12 : 421,993.26 = 91,698.06 : x
  2. Step 2: Convert to fraction form
    281,304.12/421,993.26 = 91,698.06/x
  3. Step 3: Cross multiply
    281,304.12x = 421,993.26 × 91,698.06
  4. Step 4: Simplify right side
    281,304.12x = 38,695,963,275.08
  5. Step 5: Solve for x
    x = 38,695,963,275.08/281,304.12
  6. Step 6: Final answer
    x = 137,559.18

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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.