Home / 319,629.92-479,612.32-120,088

Finding the Fourth Proportional to 319,629.92, 479,612.32 and 120,088

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Solution

The fourth proportional to 319,629.92, 479,612.32 and 120,088 is: 180,194.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,629.92 : 479,612.32 = 120,088 : x
  2. Step 2: Convert to fraction form
    319,629.92/479,612.32 = 120,088/x
  3. Step 3: Cross multiply
    319,629.92x = 479,612.32 × 120,088
  4. Step 4: Simplify right side
    319,629.92x = 57,595,684,284.16
  5. Step 5: Solve for x
    x = 57,595,684,284.16/319,629.92
  6. Step 6: Final answer
    x = 180,194.91

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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.