Home / 117,117.56-161,620.87-63,401.39

Finding the Fourth Proportional to 117,117.56, 161,620.87 and 63,401.39

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Solution

The fourth proportional to 117,117.56, 161,620.87 and 63,401.39 is: 87,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117.56 : 161,620.87 = 63,401.39 : x
  2. Step 2: Convert to fraction form
    117,117.56/161,620.87 = 63,401.39/x
  3. Step 3: Cross multiply
    117,117.56x = 161,620.87 × 63,401.39
  4. Step 4: Simplify right side
    117,117.56x = 10,246,987,811.01
  5. Step 5: Solve for x
    x = 10,246,987,811.01/117,117.56
  6. Step 6: Final answer
    x = 87,493.18

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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.