Home / 117,615.28-162,308.40-69,245.32

Finding the Fourth Proportional to 117,615.28, 162,308.40 and 69,245.32

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Solution

The fourth proportional to 117,615.28, 162,308.40 and 69,245.32 is: 95,558.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,615.28 : 162,308.40 = 69,245.32 : x
  2. Step 2: Convert to fraction form
    117,615.28/162,308.40 = 69,245.32/x
  3. Step 3: Cross multiply
    117,615.28x = 162,308.40 × 69,245.32
  4. Step 4: Simplify right side
    117,615.28x = 11,239,097,096.69
  5. Step 5: Solve for x
    x = 11,239,097,096.69/117,615.28
  6. Step 6: Final answer
    x = 95,558.14

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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.