Home / 131,815.07-198,038.03-84,522.82

Finding the Fourth Proportional to 131,815.07, 198,038.03 and 84,522.82

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Solution

The fourth proportional to 131,815.07, 198,038.03 and 84,522.82 is: 126,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,815.07 : 198,038.03 = 84,522.82 : x
  2. Step 2: Convert to fraction form
    131,815.07/198,038.03 = 84,522.82/x
  3. Step 3: Cross multiply
    131,815.07x = 198,038.03 × 84,522.82
  4. Step 4: Simplify right side
    131,815.07x = 16,738,732,762.84
  5. Step 5: Solve for x
    x = 16,738,732,762.84/131,815.07
  6. Step 6: Final answer
    x = 126,986.49

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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.