Home / 117,003.76-161,464.99-63,288.61

Finding the Fourth Proportional to 117,003.76, 161,464.99 and 63,288.61

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Solution

The fourth proportional to 117,003.76, 161,464.99 and 63,288.61 is: 87,338.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,003.76 : 161,464.99 = 63,288.61 : x
  2. Step 2: Convert to fraction form
    117,003.76/161,464.99 = 63,288.61/x
  3. Step 3: Cross multiply
    117,003.76x = 161,464.99 × 63,288.61
  4. Step 4: Simplify right side
    117,003.76x = 10,218,894,780.76
  5. Step 5: Solve for x
    x = 10,218,894,780.76/117,003.76
  6. Step 6: Final answer
    x = 87,338.17

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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.