Home / 112,580.68-168,891.48-53,415.80

Finding the Fourth Proportional to 112,580.68, 168,891.48 and 53,415.80

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Solution

The fourth proportional to 112,580.68, 168,891.48 and 53,415.80 is: 80,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,580.68 : 168,891.48 = 53,415.80 : x
  2. Step 2: Convert to fraction form
    112,580.68/168,891.48 = 53,415.80/x
  3. Step 3: Cross multiply
    112,580.68x = 168,891.48 × 53,415.80
  4. Step 4: Simplify right side
    112,580.68x = 9,021,473,517.38
  5. Step 5: Solve for x
    x = 9,021,473,517.38/112,580.68
  6. Step 6: Final answer
    x = 80,133.41

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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.