Home / 209,890.52-314,843.46-85,228.76

Finding the Fourth Proportional to 209,890.52, 314,843.46 and 85,228.76

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Solution

The fourth proportional to 209,890.52, 314,843.46 and 85,228.76 is: 127,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,890.52 : 314,843.46 = 85,228.76 : x
  2. Step 2: Convert to fraction form
    209,890.52/314,843.46 = 85,228.76/x
  3. Step 3: Cross multiply
    209,890.52x = 314,843.46 × 85,228.76
  4. Step 4: Simplify right side
    209,890.52x = 26,833,717,689.91
  5. Step 5: Solve for x
    x = 26,833,717,689.91/209,890.52
  6. Step 6: Final answer
    x = 127,846.26

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1.5x scale

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.