Home / 219,932.40-329,833.80-86,768.40

Finding the Fourth Proportional to 219,932.40, 329,833.80 and 86,768.40

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Solution

The fourth proportional to 219,932.40, 329,833.80 and 86,768.40 is: 130,127.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,932.40 : 329,833.80 = 86,768.40 : x
  2. Step 2: Convert to fraction form
    219,932.40/329,833.80 = 86,768.40/x
  3. Step 3: Cross multiply
    219,932.40x = 329,833.80 × 86,768.40
  4. Step 4: Simplify right side
    219,932.40x = 28,619,151,091.92
  5. Step 5: Solve for x
    x = 28,619,151,091.92/219,932.40
  6. Step 6: Final answer
    x = 130,127.03

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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.