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Finding the Fourth Proportional to 118,220.10, 177,330.15 and 114,939.60

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Solution

The fourth proportional to 118,220.10, 177,330.15 and 114,939.60 is: 172,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,220.10 : 177,330.15 = 114,939.60 : x
  2. Step 2: Convert to fraction form
    118,220.10/177,330.15 = 114,939.60/x
  3. Step 3: Cross multiply
    118,220.10x = 177,330.15 × 114,939.60
  4. Step 4: Simplify right side
    118,220.10x = 20,382,256,508.94
  5. Step 5: Solve for x
    x = 20,382,256,508.94/118,220.10
  6. Step 6: Final answer
    x = 172,409.40

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1.5x scale

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.