Home / 136,528.55-188,410.26-76,103.02

Finding the Fourth Proportional to 136,528.55, 188,410.26 and 76,103.02

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Solution

The fourth proportional to 136,528.55, 188,410.26 and 76,103.02 is: 105,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,528.55 : 188,410.26 = 76,103.02 : x
  2. Step 2: Convert to fraction form
    136,528.55/188,410.26 = 76,103.02/x
  3. Step 3: Cross multiply
    136,528.55x = 188,410.26 × 76,103.02
  4. Step 4: Simplify right side
    136,528.55x = 14,338,589,784.99
  5. Step 5: Solve for x
    x = 14,338,589,784.99/136,528.55
  6. Step 6: Final answer
    x = 105,022.65

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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.