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Finding the Fourth Proportional to 127,668.72, 176,213.87 and 73,945.06

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Solution

The fourth proportional to 127,668.72, 176,213.87 and 73,945.06 is: 102,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,668.72 : 176,213.87 = 73,945.06 : x
  2. Step 2: Convert to fraction form
    127,668.72/176,213.87 = 73,945.06/x
  3. Step 3: Cross multiply
    127,668.72x = 176,213.87 × 73,945.06
  4. Step 4: Simplify right side
    127,668.72x = 13,030,145,189.98
  5. Step 5: Solve for x
    x = 13,030,145,189.98/127,668.72
  6. Step 6: Final answer
    x = 102,062.16

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1.5x scale

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.