Home / 192,519.67-288,710.38-74,131.51

Finding the Fourth Proportional to 192,519.67, 288,710.38 and 74,131.51

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Solution

The fourth proportional to 192,519.67, 288,710.38 and 74,131.51 is: 111,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,519.67 : 288,710.38 = 74,131.51 : x
  2. Step 2: Convert to fraction form
    192,519.67/288,710.38 = 74,131.51/x
  3. Step 3: Cross multiply
    192,519.67x = 288,710.38 × 74,131.51
  4. Step 4: Simplify right side
    192,519.67x = 21,402,534,607.86
  5. Step 5: Solve for x
    x = 21,402,534,607.86/192,519.67
  6. Step 6: Final answer
    x = 111,170.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.