Home / 147,785.94-203,944.86-84,123.75

Finding the Fourth Proportional to 147,785.94, 203,944.86 and 84,123.75

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Solution

The fourth proportional to 147,785.94, 203,944.86 and 84,123.75 is: 116,090.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,785.94 : 203,944.86 = 84,123.75 : x
  2. Step 2: Convert to fraction form
    147,785.94/203,944.86 = 84,123.75/x
  3. Step 3: Cross multiply
    147,785.94x = 203,944.86 × 84,123.75
  4. Step 4: Simplify right side
    147,785.94x = 17,156,606,416.43
  5. Step 5: Solve for x
    x = 17,156,606,416.43/147,785.94
  6. Step 6: Final answer
    x = 116,090.92

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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.