Home / 117,397.55-162,016.61-66,410.28

Finding the Fourth Proportional to 117,397.55, 162,016.61 and 66,410.28

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Solution

The fourth proportional to 117,397.55, 162,016.61 and 66,410.28 is: 91,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,397.55 : 162,016.61 = 66,410.28 : x
  2. Step 2: Convert to fraction form
    117,397.55/162,016.61 = 66,410.28/x
  3. Step 3: Cross multiply
    117,397.55x = 162,016.61 × 66,410.28
  4. Step 4: Simplify right side
    117,397.55x = 10,759,568,102.70
  5. Step 5: Solve for x
    x = 10,759,568,102.70/117,397.55
  6. Step 6: Final answer
    x = 91,650.70

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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.