Home / 112,512.78-168,719.88-53,365.32

Finding the Fourth Proportional to 112,512.78, 168,719.88 and 53,365.32

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Solution

The fourth proportional to 112,512.78, 168,719.88 and 53,365.32 is: 80,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,512.78 : 168,719.88 = 53,365.32 : x
  2. Step 2: Convert to fraction form
    112,512.78/168,719.88 = 53,365.32/x
  3. Step 3: Cross multiply
    112,512.78x = 168,719.88 × 53,365.32
  4. Step 4: Simplify right side
    112,512.78x = 9,003,790,386.56
  5. Step 5: Solve for x
    x = 9,003,790,386.56/112,512.78
  6. Step 6: Final answer
    x = 80,024.60

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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.