Home / 134,890.75-186,149.24-75,274.75

Finding the Fourth Proportional to 134,890.75, 186,149.24 and 75,274.75

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Solution

The fourth proportional to 134,890.75, 186,149.24 and 75,274.75 is: 103,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,890.75 : 186,149.24 = 75,274.75 : x
  2. Step 2: Convert to fraction form
    134,890.75/186,149.24 = 75,274.75/x
  3. Step 3: Cross multiply
    134,890.75x = 186,149.24 × 75,274.75
  4. Step 4: Simplify right side
    134,890.75x = 14,012,337,503.69
  5. Step 5: Solve for x
    x = 14,012,337,503.69/134,890.75
  6. Step 6: Final answer
    x = 103,879.16

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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.