Home / 148,090.10-221,989.35-73,221.80

Finding the Fourth Proportional to 148,090.10, 221,989.35 and 73,221.80

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Solution

The fourth proportional to 148,090.10, 221,989.35 and 73,221.80 is: 109,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,090.10 : 221,989.35 = 73,221.80 : x
  2. Step 2: Convert to fraction form
    148,090.10/221,989.35 = 73,221.80/x
  3. Step 3: Cross multiply
    148,090.10x = 221,989.35 × 73,221.80
  4. Step 4: Simplify right side
    148,090.10x = 16,254,459,787.83
  5. Step 5: Solve for x
    x = 16,254,459,787.83/148,090.10
  6. Step 6: Final answer
    x = 109,760.61

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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.