Home / 148,250.94-221,997.51-81,617.82

Finding the Fourth Proportional to 148,250.94, 221,997.51 and 81,617.82

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Solution

The fourth proportional to 148,250.94, 221,997.51 and 81,617.82 is: 122,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,250.94 : 221,997.51 = 81,617.82 : x
  2. Step 2: Convert to fraction form
    148,250.94/221,997.51 = 81,617.82/x
  3. Step 3: Cross multiply
    148,250.94x = 221,997.51 × 81,617.82
  4. Step 4: Simplify right side
    148,250.94x = 18,118,952,811.63
  5. Step 5: Solve for x
    x = 18,118,952,811.63/148,250.94
  6. Step 6: Final answer
    x = 122,218.13

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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.