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Finding the Fourth Proportional to 117,465.69, 162,102.78 and 63,750.75

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Solution

The fourth proportional to 117,465.69, 162,102.78 and 63,750.75 is: 87,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,465.69 : 162,102.78 = 63,750.75 : x
  2. Step 2: Convert to fraction form
    117,465.69/162,102.78 = 63,750.75/x
  3. Step 3: Cross multiply
    117,465.69x = 162,102.78 × 63,750.75
  4. Step 4: Simplify right side
    117,465.69x = 10,334,173,194.20
  5. Step 5: Solve for x
    x = 10,334,173,194.20/117,465.69
  6. Step 6: Final answer
    x = 87,976.10

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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.