Home / 281,397.09-421,942.53-101,458.02

Finding the Fourth Proportional to 281,397.09, 421,942.53 and 101,458.02

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Solution

The fourth proportional to 281,397.09, 421,942.53 and 101,458.02 is: 152,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,397.09 : 421,942.53 = 101,458.02 : x
  2. Step 2: Convert to fraction form
    281,397.09/421,942.53 = 101,458.02/x
  3. Step 3: Cross multiply
    281,397.09x = 421,942.53 × 101,458.02
  4. Step 4: Simplify right side
    281,397.09x = 42,809,453,647.59
  5. Step 5: Solve for x
    x = 42,809,453,647.59/281,397.09
  6. Step 6: Final answer
    x = 152,131.83

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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.