Home / 134,785.64-185,944.98-81,039.56

Finding the Fourth Proportional to 134,785.64, 185,944.98 and 81,039.56

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Solution

The fourth proportional to 134,785.64, 185,944.98 and 81,039.56 is: 111,799.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,785.64 : 185,944.98 = 81,039.56 : x
  2. Step 2: Convert to fraction form
    134,785.64/185,944.98 = 81,039.56/x
  3. Step 3: Cross multiply
    134,785.64x = 185,944.98 × 81,039.56
  4. Step 4: Simplify right side
    134,785.64x = 15,068,899,363.41
  5. Step 5: Solve for x
    x = 15,068,899,363.41/134,785.64
  6. Step 6: Final answer
    x = 111,799.00

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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.