Home / 116,917.99-161,239.22-76,617.11

Finding the Fourth Proportional to 116,917.99, 161,239.22 and 76,617.11

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Solution

The fourth proportional to 116,917.99, 161,239.22 and 76,617.11 is: 105,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,917.99 : 161,239.22 = 76,617.11 : x
  2. Step 2: Convert to fraction form
    116,917.99/161,239.22 = 76,617.11/x
  3. Step 3: Cross multiply
    116,917.99x = 161,239.22 × 76,617.11
  4. Step 4: Simplify right side
    116,917.99x = 12,353,683,055.05
  5. Step 5: Solve for x
    x = 12,353,683,055.05/116,917.99
  6. Step 6: Final answer
    x = 105,661.10

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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.