Home / 281,218.07-421,871.04-91,634.46

Finding the Fourth Proportional to 281,218.07, 421,871.04 and 91,634.46

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Solution

The fourth proportional to 281,218.07, 421,871.04 and 91,634.46 is: 137,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,218.07 : 421,871.04 = 91,634.46 : x
  2. Step 2: Convert to fraction form
    281,218.07/421,871.04 = 91,634.46/x
  3. Step 3: Cross multiply
    281,218.07x = 421,871.04 × 91,634.46
  4. Step 4: Simplify right side
    281,218.07x = 38,657,924,940.04
  5. Step 5: Solve for x
    x = 38,657,924,940.04/281,218.07
  6. Step 6: Final answer
    x = 137,466.01

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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.