Home / 116,778.42-161,155.44-66,480.66

Finding the Fourth Proportional to 116,778.42, 161,155.44 and 66,480.66

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Solution

The fourth proportional to 116,778.42, 161,155.44 and 66,480.66 is: 91,744.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,778.42 : 161,155.44 = 66,480.66 : x
  2. Step 2: Convert to fraction form
    116,778.42/161,155.44 = 66,480.66/x
  3. Step 3: Cross multiply
    116,778.42x = 161,155.44 × 66,480.66
  4. Step 4: Simplify right side
    116,778.42x = 10,713,720,013.79
  5. Step 5: Solve for x
    x = 10,713,720,013.79/116,778.42
  6. Step 6: Final answer
    x = 91,744.01

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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.