Home / 312,741.35-468,789.73-123,124.81

Finding the Fourth Proportional to 312,741.35, 468,789.73 and 123,124.81

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Solution

The fourth proportional to 312,741.35, 468,789.73 and 123,124.81 is: 184,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,741.35 : 468,789.73 = 123,124.81 : x
  2. Step 2: Convert to fraction form
    312,741.35/468,789.73 = 123,124.81/x
  3. Step 3: Cross multiply
    312,741.35x = 468,789.73 × 123,124.81
  4. Step 4: Simplify right side
    312,741.35x = 57,719,645,835.40
  5. Step 5: Solve for x
    x = 57,719,645,835.40/312,741.35
  6. Step 6: Final answer
    x = 184,560.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.