Home / 117,116.17-161,620.36-63,401.18

Finding the Fourth Proportional to 117,116.17, 161,620.36 and 63,401.18

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Solution

The fourth proportional to 117,116.17, 161,620.36 and 63,401.18 is: 87,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,116.17 : 161,620.36 = 63,401.18 : x
  2. Step 2: Convert to fraction form
    117,116.17/161,620.36 = 63,401.18/x
  3. Step 3: Cross multiply
    117,116.17x = 161,620.36 × 63,401.18
  4. Step 4: Simplify right side
    117,116.17x = 10,246,921,781.57
  5. Step 5: Solve for x
    x = 10,246,921,781.57/117,116.17
  6. Step 6: Final answer
    x = 87,493.66

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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.