Home / 152,989.11-228,992.54-81,733.68

Finding the Fourth Proportional to 152,989.11, 228,992.54 and 81,733.68

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Solution

The fourth proportional to 152,989.11, 228,992.54 and 81,733.68 is: 122,338.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,989.11 : 228,992.54 = 81,733.68 : x
  2. Step 2: Convert to fraction form
    152,989.11/228,992.54 = 81,733.68/x
  3. Step 3: Cross multiply
    152,989.11x = 228,992.54 × 81,733.68
  4. Step 4: Simplify right side
    152,989.11x = 18,716,402,578.08
  5. Step 5: Solve for x
    x = 18,716,402,578.08/152,989.11
  6. Step 6: Final answer
    x = 122,338.14

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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.