Home / 138,910.85-208,369.35-96,174.17

Finding the Fourth Proportional to 138,910.85, 208,369.35 and 96,174.17

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Solution

The fourth proportional to 138,910.85, 208,369.35 and 96,174.17 is: 144,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,910.85 : 208,369.35 = 96,174.17 : x
  2. Step 2: Convert to fraction form
    138,910.85/208,369.35 = 96,174.17/x
  3. Step 3: Cross multiply
    138,910.85x = 208,369.35 × 96,174.17
  4. Step 4: Simplify right side
    138,910.85x = 20,039,749,289.69
  5. Step 5: Solve for x
    x = 20,039,749,289.69/138,910.85
  6. Step 6: Final answer
    x = 144,263.38

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1.5x scale

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.