Home / 127,772.16-176,325.86-71,185.56

Finding the Fourth Proportional to 127,772.16, 176,325.86 and 71,185.56

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Solution

The fourth proportional to 127,772.16, 176,325.86 and 71,185.56 is: 98,236.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,772.16 : 176,325.86 = 71,185.56 : x
  2. Step 2: Convert to fraction form
    127,772.16/176,325.86 = 71,185.56/x
  3. Step 3: Cross multiply
    127,772.16x = 176,325.86 × 71,185.56
  4. Step 4: Simplify right side
    127,772.16x = 12,551,855,086.58
  5. Step 5: Solve for x
    x = 12,551,855,086.58/127,772.16
  6. Step 6: Final answer
    x = 98,236.23

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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.