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Finding the Fourth Proportional to 117,124.86, 161,630.38 and 63,409.38

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Solution

The fourth proportional to 117,124.86, 161,630.38 and 63,409.38 is: 87,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,124.86 : 161,630.38 = 63,409.38 : x
  2. Step 2: Convert to fraction form
    117,124.86/161,630.38 = 63,409.38/x
  3. Step 3: Cross multiply
    117,124.86x = 161,630.38 × 63,409.38
  4. Step 4: Simplify right side
    117,124.86x = 10,248,882,184.96
  5. Step 5: Solve for x
    x = 10,248,882,184.96/117,124.86
  6. Step 6: Final answer
    x = 87,503.90

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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.