Home / 102,764.40-154,109.76-43,604.16

Finding the Fourth Proportional to 102,764.40, 154,109.76 and 43,604.16

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Solution

The fourth proportional to 102,764.40, 154,109.76 and 43,604.16 is: 65,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,764.40 : 154,109.76 = 43,604.16 : x
  2. Step 2: Convert to fraction form
    102,764.40/154,109.76 = 43,604.16/x
  3. Step 3: Cross multiply
    102,764.40x = 154,109.76 × 43,604.16
  4. Step 4: Simplify right side
    102,764.40x = 6,719,826,632.60
  5. Step 5: Solve for x
    x = 6,719,826,632.60/102,764.40
  6. Step 6: Final answer
    x = 65,390.61

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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.