Home / 109,645.39-151,268.94-68,792.20

Finding the Fourth Proportional to 109,645.39, 151,268.94 and 68,792.20

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Solution

The fourth proportional to 109,645.39, 151,268.94 and 68,792.20 is: 94,907.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,645.39 : 151,268.94 = 68,792.20 : x
  2. Step 2: Convert to fraction form
    109,645.39/151,268.94 = 68,792.20/x
  3. Step 3: Cross multiply
    109,645.39x = 151,268.94 × 68,792.20
  4. Step 4: Simplify right side
    109,645.39x = 10,406,123,174.27
  5. Step 5: Solve for x
    x = 10,406,123,174.27/109,645.39
  6. Step 6: Final answer
    x = 94,907.07

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1.5x scale

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.