Home / 117,465.12-162,103.68-69,101.28

Finding the Fourth Proportional to 117,465.12, 162,103.68 and 69,101.28

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Solution

The fourth proportional to 117,465.12, 162,103.68 and 69,101.28 is: 95,360.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,465.12 : 162,103.68 = 69,101.28 : x
  2. Step 2: Convert to fraction form
    117,465.12/162,103.68 = 69,101.28/x
  3. Step 3: Cross multiply
    117,465.12x = 162,103.68 × 69,101.28
  4. Step 4: Simplify right side
    117,465.12x = 11,201,571,780.71
  5. Step 5: Solve for x
    x = 11,201,571,780.71/117,465.12
  6. Step 6: Final answer
    x = 95,360.83

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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.