Home / 148,688.83-205,185.10-80,704.36

Finding the Fourth Proportional to 148,688.83, 205,185.10 and 80,704.36

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Solution

The fourth proportional to 148,688.83, 205,185.10 and 80,704.36 is: 111,369.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,688.83 : 205,185.10 = 80,704.36 : x
  2. Step 2: Convert to fraction form
    148,688.83/205,185.10 = 80,704.36/x
  3. Step 3: Cross multiply
    148,688.83x = 205,185.10 × 80,704.36
  4. Step 4: Simplify right side
    148,688.83x = 16,559,332,671.62
  5. Step 5: Solve for x
    x = 16,559,332,671.62/148,688.83
  6. Step 6: Final answer
    x = 111,369.04

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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.