Home / 117,217.45-161,759.86-63,503.81

Finding the Fourth Proportional to 117,217.45, 161,759.86 and 63,503.81

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Solution

The fourth proportional to 117,217.45, 161,759.86 and 63,503.81 is: 87,635.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,217.45 : 161,759.86 = 63,503.81 : x
  2. Step 2: Convert to fraction form
    117,217.45/161,759.86 = 63,503.81/x
  3. Step 3: Cross multiply
    117,217.45x = 161,759.86 × 63,503.81
  4. Step 4: Simplify right side
    117,217.45x = 10,272,367,415.07
  5. Step 5: Solve for x
    x = 10,272,367,415.07/117,217.45
  6. Step 6: Final answer
    x = 87,635.14

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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.