Home / 117,731.36-162,470.08-64,016.96

Finding the Fourth Proportional to 117,731.36, 162,470.08 and 64,016.96

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Solution

The fourth proportional to 117,731.36, 162,470.08 and 64,016.96 is: 88,343.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,731.36 : 162,470.08 = 64,016.96 : x
  2. Step 2: Convert to fraction form
    117,731.36/162,470.08 = 64,016.96/x
  3. Step 3: Cross multiply
    117,731.36x = 162,470.08 × 64,016.96
  4. Step 4: Simplify right side
    117,731.36x = 10,400,840,612.56
  5. Step 5: Solve for x
    x = 10,400,840,612.56/117,731.36
  6. Step 6: Final answer
    x = 88,343.84

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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.