Home / 148,803.32-205,350.09-80,820.95

Finding the Fourth Proportional to 148,803.32, 205,350.09 and 80,820.95

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Solution

The fourth proportional to 148,803.32, 205,350.09 and 80,820.95 is: 111,533.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,803.32 : 205,350.09 = 80,820.95 : x
  2. Step 2: Convert to fraction form
    148,803.32/205,350.09 = 80,820.95/x
  3. Step 3: Cross multiply
    148,803.32x = 205,350.09 × 80,820.95
  4. Step 4: Simplify right side
    148,803.32x = 16,596,589,356.39
  5. Step 5: Solve for x
    x = 16,596,589,356.39/148,803.32
  6. Step 6: Final answer
    x = 111,533.73

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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.