Home / 136,757.29-188,549.62-112,137.39

Finding the Fourth Proportional to 136,757.29, 188,549.62 and 112,137.39

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Solution

The fourth proportional to 136,757.29, 188,549.62 and 112,137.39 is: 154,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,757.29 : 188,549.62 = 112,137.39 : x
  2. Step 2: Convert to fraction form
    136,757.29/188,549.62 = 112,137.39/x
  3. Step 3: Cross multiply
    136,757.29x = 188,549.62 × 112,137.39
  4. Step 4: Simplify right side
    136,757.29x = 21,143,461,705.40
  5. Step 5: Solve for x
    x = 21,143,461,705.40/136,757.29
  6. Step 6: Final answer
    x = 154,605.74

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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.