Home / 118,784.26-177,986.85-87,047.24

Finding the Fourth Proportional to 118,784.26, 177,986.85 and 87,047.24

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Solution

The fourth proportional to 118,784.26, 177,986.85 and 87,047.24 is: 130,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,784.26 : 177,986.85 = 87,047.24 : x
  2. Step 2: Convert to fraction form
    118,784.26/177,986.85 = 87,047.24/x
  3. Step 3: Cross multiply
    118,784.26x = 177,986.85 × 87,047.24
  4. Step 4: Simplify right side
    118,784.26x = 15,493,264,167.33
  5. Step 5: Solve for x
    x = 15,493,264,167.33/118,784.26
  6. Step 6: Final answer
    x = 130,431.97

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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.