Home / 127,661.48-176,172.84-71,086.20

Finding the Fourth Proportional to 127,661.48, 176,172.84 and 71,086.20

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Solution

The fourth proportional to 127,661.48, 176,172.84 and 71,086.20 is: 98,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,661.48 : 176,172.84 = 71,086.20 : x
  2. Step 2: Convert to fraction form
    127,661.48/176,172.84 = 71,086.20/x
  3. Step 3: Cross multiply
    127,661.48x = 176,172.84 × 71,086.20
  4. Step 4: Simplify right side
    127,661.48x = 12,523,457,738.81
  5. Step 5: Solve for x
    x = 12,523,457,738.81/127,661.48
  6. Step 6: Final answer
    x = 98,098.95

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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.