Home / 118,235.45-177,284.91-80,840.81

Finding the Fourth Proportional to 118,235.45, 177,284.91 and 80,840.81

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Solution

The fourth proportional to 118,235.45, 177,284.91 and 80,840.81 is: 121,214.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,235.45 : 177,284.91 = 80,840.81 : x
  2. Step 2: Convert to fraction form
    118,235.45/177,284.91 = 80,840.81/x
  3. Step 3: Cross multiply
    118,235.45x = 177,284.91 × 80,840.81
  4. Step 4: Simplify right side
    118,235.45x = 14,331,855,725.18
  5. Step 5: Solve for x
    x = 14,331,855,725.18/118,235.45
  6. Step 6: Final answer
    x = 121,214.54

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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.