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Finding the Fourth Proportional to 135,410.79, 186,866.42 and 75,794.79

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Solution

The fourth proportional to 135,410.79, 186,866.42 and 75,794.79 is: 104,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,410.79 : 186,866.42 = 75,794.79 : x
  2. Step 2: Convert to fraction form
    135,410.79/186,866.42 = 75,794.79/x
  3. Step 3: Cross multiply
    135,410.79x = 186,866.42 × 75,794.79
  4. Step 4: Simplify right side
    135,410.79x = 14,163,500,682.98
  5. Step 5: Solve for x
    x = 14,163,500,682.98/135,410.79
  6. Step 6: Final answer
    x = 104,596.54

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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.