Home / 187,790.36-259,399.14-139,960.67

Finding the Fourth Proportional to 187,790.36, 259,399.14 and 139,960.67

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Solution

The fourth proportional to 187,790.36, 259,399.14 and 139,960.67 is: 193,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,790.36 : 259,399.14 = 139,960.67 : x
  2. Step 2: Convert to fraction form
    187,790.36/259,399.14 = 139,960.67/x
  3. Step 3: Cross multiply
    187,790.36x = 259,399.14 × 139,960.67
  4. Step 4: Simplify right side
    187,790.36x = 36,305,677,431.82
  5. Step 5: Solve for x
    x = 36,305,677,431.82/187,790.36
  6. Step 6: Final answer
    x = 193,330.89

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1.5x scale

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.