Home / 148,914.80-205,503.24-80,932.40

Finding the Fourth Proportional to 148,914.80, 205,503.24 and 80,932.40

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Solution

The fourth proportional to 148,914.80, 205,503.24 and 80,932.40 is: 111,687.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,914.80 : 205,503.24 = 80,932.40 : x
  2. Step 2: Convert to fraction form
    148,914.80/205,503.24 = 80,932.40/x
  3. Step 3: Cross multiply
    148,914.80x = 205,503.24 × 80,932.40
  4. Step 4: Simplify right side
    148,914.80x = 16,631,870,420.98
  5. Step 5: Solve for x
    x = 16,631,870,420.98/148,914.80
  6. Step 6: Final answer
    x = 111,687.16

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1.5x scale

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.