Home / 117,527.16-162,171.16-69,131.28

Finding the Fourth Proportional to 117,527.16, 162,171.16 and 69,131.28

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Solution

The fourth proportional to 117,527.16, 162,171.16 and 69,131.28 is: 95,391.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,527.16 : 162,171.16 = 69,131.28 : x
  2. Step 2: Convert to fraction form
    117,527.16/162,171.16 = 69,131.28/x
  3. Step 3: Cross multiply
    117,527.16x = 162,171.16 × 69,131.28
  4. Step 4: Simplify right side
    117,527.16x = 11,211,099,869.88
  5. Step 5: Solve for x
    x = 11,211,099,869.88/117,527.16
  6. Step 6: Final answer
    x = 95,391.57

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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.