Home / 117,104.64-161,604.48-63,390.10

Finding the Fourth Proportional to 117,104.64, 161,604.48 and 63,390.10

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Solution

The fourth proportional to 117,104.64, 161,604.48 and 63,390.10 is: 87,478.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,104.64 : 161,604.48 = 63,390.10 : x
  2. Step 2: Convert to fraction form
    117,104.64/161,604.48 = 63,390.10/x
  3. Step 3: Cross multiply
    117,104.64x = 161,604.48 × 63,390.10
  4. Step 4: Simplify right side
    117,104.64x = 10,244,124,147.65
  5. Step 5: Solve for x
    x = 10,244,124,147.65/117,104.64
  6. Step 6: Final answer
    x = 87,478.38

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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.