Home / 127,679.96-176,195.22-71,090.12

Finding the Fourth Proportional to 127,679.96, 176,195.22 and 71,090.12

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Solution

The fourth proportional to 127,679.96, 176,195.22 and 71,090.12 is: 98,102.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,679.96 : 176,195.22 = 71,090.12 : x
  2. Step 2: Convert to fraction form
    127,679.96/176,195.22 = 71,090.12/x
  3. Step 3: Cross multiply
    127,679.96x = 176,195.22 × 71,090.12
  4. Step 4: Simplify right side
    127,679.96x = 12,525,739,333.23
  5. Step 5: Solve for x
    x = 12,525,739,333.23/127,679.96
  6. Step 6: Final answer
    x = 98,102.63

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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.