Home / 117,713.07-162,442.85-87,632.91

Finding the Fourth Proportional to 117,713.07, 162,442.85 and 87,632.91

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Solution

The fourth proportional to 117,713.07, 162,442.85 and 87,632.91 is: 120,932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,713.07 : 162,442.85 = 87,632.91 : x
  2. Step 2: Convert to fraction form
    117,713.07/162,442.85 = 87,632.91/x
  3. Step 3: Cross multiply
    117,713.07x = 162,442.85 × 87,632.91
  4. Step 4: Simplify right side
    117,713.07x = 14,235,339,216.03
  5. Step 5: Solve for x
    x = 14,235,339,216.03/117,713.07
  6. Step 6: Final answer
    x = 120,932.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.