Home / 165,123.10-227,939.63-111,480.77

Finding the Fourth Proportional to 165,123.10, 227,939.63 and 111,480.77

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Solution

The fourth proportional to 165,123.10, 227,939.63 and 111,480.77 is: 153,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,123.10 : 227,939.63 = 111,480.77 : x
  2. Step 2: Convert to fraction form
    165,123.10/227,939.63 = 111,480.77/x
  3. Step 3: Cross multiply
    165,123.10x = 227,939.63 × 111,480.77
  4. Step 4: Simplify right side
    165,123.10x = 25,410,885,465.92
  5. Step 5: Solve for x
    x = 25,410,885,465.92/165,123.10
  6. Step 6: Final answer
    x = 153,890.55

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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.