Home / 138,320.10-207,443.70-43,550.10

Finding the Fourth Proportional to 138,320.10, 207,443.70 and 43,550.10

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Solution

The fourth proportional to 138,320.10, 207,443.70 and 43,550.10 is: 65,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,320.10 : 207,443.70 = 43,550.10 : x
  2. Step 2: Convert to fraction form
    138,320.10/207,443.70 = 43,550.10/x
  3. Step 3: Cross multiply
    138,320.10x = 207,443.70 × 43,550.10
  4. Step 4: Simplify right side
    138,320.10x = 9,034,193,879.37
  5. Step 5: Solve for x
    x = 9,034,193,879.37/138,320.10
  6. Step 6: Final answer
    x = 65,313.67

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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.