Home / 148,984.21-205,602.24-81,005.77

Finding the Fourth Proportional to 148,984.21, 205,602.24 and 81,005.77

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Solution

The fourth proportional to 148,984.21, 205,602.24 and 81,005.77 is: 111,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,984.21 : 205,602.24 = 81,005.77 : x
  2. Step 2: Convert to fraction form
    148,984.21/205,602.24 = 81,005.77/x
  3. Step 3: Cross multiply
    148,984.21x = 205,602.24 × 81,005.77
  4. Step 4: Simplify right side
    148,984.21x = 16,654,967,764.92
  5. Step 5: Solve for x
    x = 16,654,967,764.92/148,984.21
  6. Step 6: Final answer
    x = 111,790.15

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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.