Home / 127,812.10-176,393.82-76,841.44

Finding the Fourth Proportional to 127,812.10, 176,393.82 and 76,841.44

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Solution

The fourth proportional to 127,812.10, 176,393.82 and 76,841.44 is: 106,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,812.10 : 176,393.82 = 76,841.44 : x
  2. Step 2: Convert to fraction form
    127,812.10/176,393.82 = 76,841.44/x
  3. Step 3: Cross multiply
    127,812.10x = 176,393.82 × 76,841.44
  4. Step 4: Simplify right side
    127,812.10x = 13,554,355,135.90
  5. Step 5: Solve for x
    x = 13,554,355,135.90/127,812.10
  6. Step 6: Final answer
    x = 106,049.08

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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.