Home / 215,006.83-322,385.63-72,804.65

Finding the Fourth Proportional to 215,006.83, 322,385.63 and 72,804.65

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Solution

The fourth proportional to 215,006.83, 322,385.63 and 72,804.65 is: 109,164.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,006.83 : 322,385.63 = 72,804.65 : x
  2. Step 2: Convert to fraction form
    215,006.83/322,385.63 = 72,804.65/x
  3. Step 3: Cross multiply
    215,006.83x = 322,385.63 × 72,804.65
  4. Step 4: Simplify right side
    215,006.83x = 23,471,171,527.26
  5. Step 5: Solve for x
    x = 23,471,171,527.26/215,006.83
  6. Step 6: Final answer
    x = 109,164.77

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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.