Home / 127,836.60-191,582.10-112,975.80

Finding the Fourth Proportional to 127,836.60, 191,582.10 and 112,975.80

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Solution

The fourth proportional to 127,836.60, 191,582.10 and 112,975.80 is: 169,310.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,836.60 : 191,582.10 = 112,975.80 : x
  2. Step 2: Convert to fraction form
    127,836.60/191,582.10 = 112,975.80/x
  3. Step 3: Cross multiply
    127,836.60x = 191,582.10 × 112,975.80
  4. Step 4: Simplify right side
    127,836.60x = 21,644,141,013.18
  5. Step 5: Solve for x
    x = 21,644,141,013.18/127,836.60
  6. Step 6: Final answer
    x = 169,310.99

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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.