Home / 207,324.36-286,195.89-139,380.74

Finding the Fourth Proportional to 207,324.36, 286,195.89 and 139,380.74

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Solution

The fourth proportional to 207,324.36, 286,195.89 and 139,380.74 is: 192,404.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,324.36 : 286,195.89 = 139,380.74 : x
  2. Step 2: Convert to fraction form
    207,324.36/286,195.89 = 139,380.74/x
  3. Step 3: Cross multiply
    207,324.36x = 286,195.89 × 139,380.74
  4. Step 4: Simplify right side
    207,324.36x = 39,890,193,502.18
  5. Step 5: Solve for x
    x = 39,890,193,502.18/207,324.36
  6. Step 6: Final answer
    x = 192,404.76

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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.