Home / 117,330.86-161,917.79-63,615.98

Finding the Fourth Proportional to 117,330.86, 161,917.79 and 63,615.98

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Solution

The fourth proportional to 117,330.86, 161,917.79 and 63,615.98 is: 87,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,330.86 : 161,917.79 = 63,615.98 : x
  2. Step 2: Convert to fraction form
    117,330.86/161,917.79 = 63,615.98/x
  3. Step 3: Cross multiply
    117,330.86x = 161,917.79 × 63,615.98
  4. Step 4: Simplify right side
    117,330.86x = 10,300,558,890.28
  5. Step 5: Solve for x
    x = 10,300,558,890.28/117,330.86
  6. Step 6: Final answer
    x = 87,790.70

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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.