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Finding the Fourth Proportional to 117,323.76, 161,906.87 and 63,609.00

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Solution

The fourth proportional to 117,323.76, 161,906.87 and 63,609.00 is: 87,780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,323.76 : 161,906.87 = 63,609.00 : x
  2. Step 2: Convert to fraction form
    117,323.76/161,906.87 = 63,609.00/x
  3. Step 3: Cross multiply
    117,323.76x = 161,906.87 × 63,609.00
  4. Step 4: Simplify right side
    117,323.76x = 10,298,733,645.70
  5. Step 5: Solve for x
    x = 10,298,733,645.70/117,323.76
  6. Step 6: Final answer
    x = 87,780.46

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1.5x scale

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.