Home / 148,823.09-205,375.71-80,840.12

Finding the Fourth Proportional to 148,823.09, 205,375.71 and 80,840.12

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Solution

The fourth proportional to 148,823.09, 205,375.71 and 80,840.12 is: 111,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,823.09 : 205,375.71 = 80,840.12 : x
  2. Step 2: Convert to fraction form
    148,823.09/205,375.71 = 80,840.12/x
  3. Step 3: Cross multiply
    148,823.09x = 205,375.71 × 80,840.12
  4. Step 4: Simplify right side
    148,823.09x = 16,602,597,041.49
  5. Step 5: Solve for x
    x = 16,602,597,041.49/148,823.09
  6. Step 6: Final answer
    x = 111,559.28

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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.