Home / 117,632.28-162,351.90-85,906.20

Finding the Fourth Proportional to 117,632.28, 162,351.90 and 85,906.20

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Solution

The fourth proportional to 117,632.28, 162,351.90 and 85,906.20 is: 118,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,632.28 : 162,351.90 = 85,906.20 : x
  2. Step 2: Convert to fraction form
    117,632.28/162,351.90 = 85,906.20/x
  3. Step 3: Cross multiply
    117,632.28x = 162,351.90 × 85,906.20
  4. Step 4: Simplify right side
    117,632.28x = 13,947,034,791.78
  5. Step 5: Solve for x
    x = 13,947,034,791.78/117,632.28
  6. Step 6: Final answer
    x = 118,564.69

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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.