Home / 113,730.17-170,743.08-87,453.36

Finding the Fourth Proportional to 113,730.17, 170,743.08 and 87,453.36

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Solution

The fourth proportional to 113,730.17, 170,743.08 and 87,453.36 is: 131,293.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,730.17 : 170,743.08 = 87,453.36 : x
  2. Step 2: Convert to fraction form
    113,730.17/170,743.08 = 87,453.36/x
  3. Step 3: Cross multiply
    113,730.17x = 170,743.08 × 87,453.36
  4. Step 4: Simplify right side
    113,730.17x = 14,932,056,042.75
  5. Step 5: Solve for x
    x = 14,932,056,042.75/113,730.17
  6. Step 6: Final answer
    x = 131,293.71

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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.