Home / 144,670.32-199,635.84-81,007.56

Finding the Fourth Proportional to 144,670.32, 199,635.84 and 81,007.56

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Solution

The fourth proportional to 144,670.32, 199,635.84 and 81,007.56 is: 111,785.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,670.32 : 199,635.84 = 81,007.56 : x
  2. Step 2: Convert to fraction form
    144,670.32/199,635.84 = 81,007.56/x
  3. Step 3: Cross multiply
    144,670.32x = 199,635.84 × 81,007.56
  4. Step 4: Simplify right side
    144,670.32x = 16,172,012,286.95
  5. Step 5: Solve for x
    x = 16,172,012,286.95/144,670.32
  6. Step 6: Final answer
    x = 111,785.28

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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.