Home / 203,814.72-281,323.80-135,930.24

Finding the Fourth Proportional to 203,814.72, 281,323.80 and 135,930.24

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Solution

The fourth proportional to 203,814.72, 281,323.80 and 135,930.24 is: 187,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,814.72 : 281,323.80 = 135,930.24 : x
  2. Step 2: Convert to fraction form
    203,814.72/281,323.80 = 135,930.24/x
  3. Step 3: Cross multiply
    203,814.72x = 281,323.80 × 135,930.24
  4. Step 4: Simplify right side
    203,814.72x = 38,240,411,651.71
  5. Step 5: Solve for x
    x = 38,240,411,651.71/203,814.72
  6. Step 6: Final answer
    x = 187,623.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.