Home / 118,720.99-163,839.38-67,742.02

Finding the Fourth Proportional to 118,720.99, 163,839.38 and 67,742.02

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Solution

The fourth proportional to 118,720.99, 163,839.38 and 67,742.02 is: 93,486.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,720.99 : 163,839.38 = 67,742.02 : x
  2. Step 2: Convert to fraction form
    118,720.99/163,839.38 = 67,742.02/x
  3. Step 3: Cross multiply
    118,720.99x = 163,839.38 × 67,742.02
  4. Step 4: Simplify right side
    118,720.99x = 11,098,810,556.75
  5. Step 5: Solve for x
    x = 11,098,810,556.75/118,720.99
  6. Step 6: Final answer
    x = 93,486.51

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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.