Home / 148,998.34-205,620.27-81,015.77

Finding the Fourth Proportional to 148,998.34, 205,620.27 and 81,015.77

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Solution

The fourth proportional to 148,998.34, 205,620.27 and 81,015.77 is: 111,803.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,998.34 : 205,620.27 = 81,015.77 : x
  2. Step 2: Convert to fraction form
    148,998.34/205,620.27 = 81,015.77/x
  3. Step 3: Cross multiply
    148,998.34x = 205,620.27 × 81,015.77
  4. Step 4: Simplify right side
    148,998.34x = 16,658,484,414.08
  5. Step 5: Solve for x
    x = 16,658,484,414.08/148,998.34
  6. Step 6: Final answer
    x = 111,803.16

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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.