Home / 148,849.40-205,411.36-80,865.84

Finding the Fourth Proportional to 148,849.40, 205,411.36 and 80,865.84

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Solution

The fourth proportional to 148,849.40, 205,411.36 and 80,865.84 is: 111,594.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,849.40 : 205,411.36 = 80,865.84 : x
  2. Step 2: Convert to fraction form
    148,849.40/205,411.36 = 80,865.84/x
  3. Step 3: Cross multiply
    148,849.40x = 205,411.36 × 80,865.84
  4. Step 4: Simplify right side
    148,849.40x = 16,610,762,171.94
  5. Step 5: Solve for x
    x = 16,610,762,171.94/148,849.40
  6. Step 6: Final answer
    x = 111,594.42

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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.