Home / 112,743.82-168,886.09-53,399.58

Finding the Fourth Proportional to 112,743.82, 168,886.09 and 53,399.58

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Solution

The fourth proportional to 112,743.82, 168,886.09 and 53,399.58 is: 79,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,743.82 : 168,886.09 = 53,399.58 : x
  2. Step 2: Convert to fraction form
    112,743.82/168,886.09 = 53,399.58/x
  3. Step 3: Cross multiply
    112,743.82x = 168,886.09 × 53,399.58
  4. Step 4: Simplify right side
    112,743.82x = 9,018,446,273.84
  5. Step 5: Solve for x
    x = 9,018,446,273.84/112,743.82
  6. Step 6: Final answer
    x = 79,990.60

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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.