Home / 126,992.61-190,450.04-87,801.57

Finding the Fourth Proportional to 126,992.61, 190,450.04 and 87,801.57

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Solution

The fourth proportional to 126,992.61, 190,450.04 and 87,801.57 is: 131,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,992.61 : 190,450.04 = 87,801.57 : x
  2. Step 2: Convert to fraction form
    126,992.61/190,450.04 = 87,801.57/x
  3. Step 3: Cross multiply
    126,992.61x = 190,450.04 × 87,801.57
  4. Step 4: Simplify right side
    126,992.61x = 16,721,812,079.56
  5. Step 5: Solve for x
    x = 16,721,812,079.56/126,992.61
  6. Step 6: Final answer
    x = 131,675.47

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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.