Home / 118,273.52-177,342.09-80,878.89

Finding the Fourth Proportional to 118,273.52, 177,342.09 and 80,878.89

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Solution

The fourth proportional to 118,273.52, 177,342.09 and 80,878.89 is: 121,271.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,273.52 : 177,342.09 = 80,878.89 : x
  2. Step 2: Convert to fraction form
    118,273.52/177,342.09 = 80,878.89/x
  3. Step 3: Cross multiply
    118,273.52x = 177,342.09 × 80,878.89
  4. Step 4: Simplify right side
    118,273.52x = 14,343,231,389.48
  5. Step 5: Solve for x
    x = 14,343,231,389.48/118,273.52
  6. Step 6: Final answer
    x = 121,271.71

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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.