Home / 147,981.80-222,005.10-73,137.80

Finding the Fourth Proportional to 147,981.80, 222,005.10 and 73,137.80

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Solution

The fourth proportional to 147,981.80, 222,005.10 and 73,137.80 is: 109,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,981.80 : 222,005.10 = 73,137.80 : x
  2. Step 2: Convert to fraction form
    147,981.80/222,005.10 = 73,137.80/x
  3. Step 3: Cross multiply
    147,981.80x = 222,005.10 × 73,137.80
  4. Step 4: Simplify right side
    147,981.80x = 16,236,964,602.78
  5. Step 5: Solve for x
    x = 16,236,964,602.78/147,981.80
  6. Step 6: Final answer
    x = 109,722.71

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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.