Home / 132,835.88-183,317-81,882.28

Finding the Fourth Proportional to 132,835.88, 183,317 and 81,882.28

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Solution

The fourth proportional to 132,835.88, 183,317 and 81,882.28 is: 112,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,835.88 : 183,317 = 81,882.28 : x
  2. Step 2: Convert to fraction form
    132,835.88/183,317 = 81,882.28/x
  3. Step 3: Cross multiply
    132,835.88x = 183,317 × 81,882.28
  4. Step 4: Simplify right side
    132,835.88x = 15,010,413,922.76
  5. Step 5: Solve for x
    x = 15,010,413,922.76/132,835.88
  6. Step 6: Final answer
    x = 112,999.69

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1.5x scale

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.