Home / 117,638.20-176,198.10-70,809.40

Finding the Fourth Proportional to 117,638.20, 176,198.10 and 70,809.40

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Solution

The fourth proportional to 117,638.20, 176,198.10 and 70,809.40 is: 106,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,638.20 : 176,198.10 = 70,809.40 : x
  2. Step 2: Convert to fraction form
    117,638.20/176,198.10 = 70,809.40/x
  3. Step 3: Cross multiply
    117,638.20x = 176,198.10 × 70,809.40
  4. Step 4: Simplify right side
    117,638.20x = 12,476,481,742.14
  5. Step 5: Solve for x
    x = 12,476,481,742.14/117,638.20
  6. Step 6: Final answer
    x = 106,058.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.