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Finding the Fourth Proportional to 117,127.67, 161,636.26 and 63,412.67

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Solution

The fourth proportional to 117,127.67, 161,636.26 and 63,412.67 is: 87,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,127.67 : 161,636.26 = 63,412.67 : x
  2. Step 2: Convert to fraction form
    117,127.67/161,636.26 = 63,412.67/x
  3. Step 3: Cross multiply
    117,127.67x = 161,636.26 × 63,412.67
  4. Step 4: Simplify right side
    117,127.67x = 10,249,787,179.87
  5. Step 5: Solve for x
    x = 10,249,787,179.87/117,127.67
  6. Step 6: Final answer
    x = 87,509.53

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1.5x scale

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.