Home / 202,666.20-279,749.34-139,214.04

Finding the Fourth Proportional to 202,666.20, 279,749.34 and 139,214.04

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Solution

The fourth proportional to 202,666.20, 279,749.34 and 139,214.04 is: 192,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,666.20 : 279,749.34 = 139,214.04 : x
  2. Step 2: Convert to fraction form
    202,666.20/279,749.34 = 139,214.04/x
  3. Step 3: Cross multiply
    202,666.20x = 279,749.34 × 139,214.04
  4. Step 4: Simplify right side
    202,666.20x = 38,945,035,808.73
  5. Step 5: Solve for x
    x = 38,945,035,808.73/202,666.20
  6. Step 6: Final answer
    x = 192,163.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.