Home / 120,409.92-180,731.52-58,124.16

Finding the Fourth Proportional to 120,409.92, 180,731.52 and 58,124.16

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Solution

The fourth proportional to 120,409.92, 180,731.52 and 58,124.16 is: 87,242.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,409.92 : 180,731.52 = 58,124.16 : x
  2. Step 2: Convert to fraction form
    120,409.92/180,731.52 = 58,124.16/x
  3. Step 3: Cross multiply
    120,409.92x = 180,731.52 × 58,124.16
  4. Step 4: Simplify right side
    120,409.92x = 10,504,867,785.52
  5. Step 5: Solve for x
    x = 10,504,867,785.52/120,409.92
  6. Step 6: Final answer
    x = 87,242.54

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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.