Home / 149,164.08-205,842.56-81,182.40

Finding the Fourth Proportional to 149,164.08, 205,842.56 and 81,182.40

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Solution

The fourth proportional to 149,164.08, 205,842.56 and 81,182.40 is: 112,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,164.08 : 205,842.56 = 81,182.40 : x
  2. Step 2: Convert to fraction form
    149,164.08/205,842.56 = 81,182.40/x
  3. Step 3: Cross multiply
    149,164.08x = 205,842.56 × 81,182.40
  4. Step 4: Simplify right side
    149,164.08x = 16,710,793,042.94
  5. Step 5: Solve for x
    x = 16,710,793,042.94/149,164.08
  6. Step 6: Final answer
    x = 112,029.61

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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.