Home / 118,635.12-163,716.48-64,920.14

Finding the Fourth Proportional to 118,635.12, 163,716.48 and 64,920.14

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Solution

The fourth proportional to 118,635.12, 163,716.48 and 64,920.14 is: 89,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,635.12 : 163,716.48 = 64,920.14 : x
  2. Step 2: Convert to fraction form
    118,635.12/163,716.48 = 64,920.14/x
  3. Step 3: Cross multiply
    118,635.12x = 163,716.48 × 64,920.14
  4. Step 4: Simplify right side
    118,635.12x = 10,628,496,230.32
  5. Step 5: Solve for x
    x = 10,628,496,230.32/118,635.12
  6. Step 6: Final answer
    x = 89,589.80

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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.