Home / 102,684.20-154,004.70-43,521.80

Finding the Fourth Proportional to 102,684.20, 154,004.70 and 43,521.80

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Solution

The fourth proportional to 102,684.20, 154,004.70 and 43,521.80 is: 65,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,684.20 : 154,004.70 = 43,521.80 : x
  2. Step 2: Convert to fraction form
    102,684.20/154,004.70 = 43,521.80/x
  3. Step 3: Cross multiply
    102,684.20x = 154,004.70 × 43,521.80
  4. Step 4: Simplify right side
    102,684.20x = 6,702,561,752.46
  5. Step 5: Solve for x
    x = 6,702,561,752.46/102,684.20
  6. Step 6: Final answer
    x = 65,273.55

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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.