Home / 117,138.59-161,651.33-63,423.64

Finding the Fourth Proportional to 117,138.59, 161,651.33 and 63,423.64

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Solution

The fourth proportional to 117,138.59, 161,651.33 and 63,423.64 is: 87,524.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,138.59 : 161,651.33 = 63,423.64 : x
  2. Step 2: Convert to fraction form
    117,138.59/161,651.33 = 63,423.64/x
  3. Step 3: Cross multiply
    117,138.59x = 161,651.33 × 63,423.64
  4. Step 4: Simplify right side
    117,138.59x = 10,252,515,882.23
  5. Step 5: Solve for x
    x = 10,252,515,882.23/117,138.59
  6. Step 6: Final answer
    x = 87,524.67

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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.