Home / 117,118.09-161,623.48-63,403.10

Finding the Fourth Proportional to 117,118.09, 161,623.48 and 63,403.10

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Solution

The fourth proportional to 117,118.09, 161,623.48 and 63,403.10 is: 87,496.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,118.09 : 161,623.48 = 63,403.10 : x
  2. Step 2: Convert to fraction form
    117,118.09/161,623.48 = 63,403.10/x
  3. Step 3: Cross multiply
    117,118.09x = 161,623.48 × 63,403.10
  4. Step 4: Simplify right side
    117,118.09x = 10,247,429,664.79
  5. Step 5: Solve for x
    x = 10,247,429,664.79/117,118.09
  6. Step 6: Final answer
    x = 87,496.56

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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.