Home / 120,831.93-166,769.90-69,837.62

Finding the Fourth Proportional to 120,831.93, 166,769.90 and 69,837.62

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Solution

The fourth proportional to 120,831.93, 166,769.90 and 69,837.62 is: 96,388.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,831.93 : 166,769.90 = 69,837.62 : x
  2. Step 2: Convert to fraction form
    120,831.93/166,769.90 = 69,837.62/x
  3. Step 3: Cross multiply
    120,831.93x = 166,769.90 × 69,837.62
  4. Step 4: Simplify right side
    120,831.93x = 11,646,811,720.60
  5. Step 5: Solve for x
    x = 11,646,811,720.60/120,831.93
  6. Step 6: Final answer
    x = 96,388.53

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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.