Home / 147,688.32-203,807.04-80,620.80

Finding the Fourth Proportional to 147,688.32, 203,807.04 and 80,620.80

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Solution

The fourth proportional to 147,688.32, 203,807.04 and 80,620.80 is: 111,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,688.32 : 203,807.04 = 80,620.80 : x
  2. Step 2: Convert to fraction form
    147,688.32/203,807.04 = 80,620.80/x
  3. Step 3: Cross multiply
    147,688.32x = 203,807.04 × 80,620.80
  4. Step 4: Simplify right side
    147,688.32x = 16,431,086,610.43
  5. Step 5: Solve for x
    x = 16,431,086,610.43/147,688.32
  6. Step 6: Final answer
    x = 111,255.15

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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.