Home / 103,132.43-154,698.76-28,253.22

Finding the Fourth Proportional to 103,132.43, 154,698.76 and 28,253.22

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Solution

The fourth proportional to 103,132.43, 154,698.76 and 28,253.22 is: 42,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,132.43 : 154,698.76 = 28,253.22 : x
  2. Step 2: Convert to fraction form
    103,132.43/154,698.76 = 28,253.22/x
  3. Step 3: Cross multiply
    103,132.43x = 154,698.76 × 28,253.22
  4. Step 4: Simplify right side
    103,132.43x = 4,370,738,100.01
  5. Step 5: Solve for x
    x = 4,370,738,100.01/103,132.43
  6. Step 6: Final answer
    x = 42,379.86

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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.