Home / 117,636.12-162,227.16-90,736.02

Finding the Fourth Proportional to 117,636.12, 162,227.16 and 90,736.02

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Solution

The fourth proportional to 117,636.12, 162,227.16 and 90,736.02 is: 125,130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,636.12 : 162,227.16 = 90,736.02 : x
  2. Step 2: Convert to fraction form
    117,636.12/162,227.16 = 90,736.02/x
  3. Step 3: Cross multiply
    117,636.12x = 162,227.16 × 90,736.02
  4. Step 4: Simplify right side
    117,636.12x = 14,719,846,834.30
  5. Step 5: Solve for x
    x = 14,719,846,834.30/117,636.12
  6. Step 6: Final answer
    x = 125,130.33

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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.