Home / 281,020.62-421,582.86-88,943.40

Finding the Fourth Proportional to 281,020.62, 421,582.86 and 88,943.40

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Solution

The fourth proportional to 281,020.62, 421,582.86 and 88,943.40 is: 133,431.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,020.62 : 421,582.86 = 88,943.40 : x
  2. Step 2: Convert to fraction form
    281,020.62/421,582.86 = 88,943.40/x
  3. Step 3: Cross multiply
    281,020.62x = 421,582.86 × 88,943.40
  4. Step 4: Simplify right side
    281,020.62x = 37,497,012,950.12
  5. Step 5: Solve for x
    x = 37,497,012,950.12/281,020.62
  6. Step 6: Final answer
    x = 133,431.54

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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.