Home / 261,400.30-392,063.38-83,884.34

Finding the Fourth Proportional to 261,400.30, 392,063.38 and 83,884.34

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Solution

The fourth proportional to 261,400.30, 392,063.38 and 83,884.34 is: 125,814.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,400.30 : 392,063.38 = 83,884.34 : x
  2. Step 2: Convert to fraction form
    261,400.30/392,063.38 = 83,884.34/x
  3. Step 3: Cross multiply
    261,400.30x = 392,063.38 × 83,884.34
  4. Step 4: Simplify right side
    261,400.30x = 32,887,977,869.47
  5. Step 5: Solve for x
    x = 32,887,977,869.47/261,400.30
  6. Step 6: Final answer
    x = 125,814.61

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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.