Home / 130,790.91-180,546.33-88,406.85

Finding the Fourth Proportional to 130,790.91, 180,546.33 and 88,406.85

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Solution

The fourth proportional to 130,790.91, 180,546.33 and 88,406.85 is: 122,038.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,790.91 : 180,546.33 = 88,406.85 : x
  2. Step 2: Convert to fraction form
    130,790.91/180,546.33 = 88,406.85/x
  3. Step 3: Cross multiply
    130,790.91x = 180,546.33 × 88,406.85
  4. Step 4: Simplify right side
    130,790.91x = 15,961,532,314.36
  5. Step 5: Solve for x
    x = 15,961,532,314.36/130,790.91
  6. Step 6: Final answer
    x = 122,038.54

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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.