Home / 117,117.26-161,621.87-63,402.27

Finding the Fourth Proportional to 117,117.26, 161,621.87 and 63,402.27

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Solution

The fourth proportional to 117,117.26, 161,621.87 and 63,402.27 is: 87,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117.26 : 161,621.87 = 63,402.27 : x
  2. Step 2: Convert to fraction form
    117,117.26/161,621.87 = 63,402.27/x
  3. Step 3: Cross multiply
    117,117.26x = 161,621.87 × 63,402.27
  4. Step 4: Simplify right side
    117,117.26x = 10,247,193,439.64
  5. Step 5: Solve for x
    x = 10,247,193,439.64/117,117.26
  6. Step 6: Final answer
    x = 87,495.16

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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.