Home / 127,668.96-176,180.04-71,079.12

Finding the Fourth Proportional to 127,668.96, 176,180.04 and 71,079.12

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Solution

The fourth proportional to 127,668.96, 176,180.04 and 71,079.12 is: 98,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,668.96 : 176,180.04 = 71,079.12 : x
  2. Step 2: Convert to fraction form
    127,668.96/176,180.04 = 71,079.12/x
  3. Step 3: Cross multiply
    127,668.96x = 176,180.04 × 71,079.12
  4. Step 4: Simplify right side
    127,668.96x = 12,522,722,204.76
  5. Step 5: Solve for x
    x = 12,522,722,204.76/127,668.96
  6. Step 6: Final answer
    x = 98,087.45

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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.