Home / 148,670.38-205,157.64-88,243.66

Finding the Fourth Proportional to 148,670.38, 205,157.64 and 88,243.66

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Solution

The fourth proportional to 148,670.38, 205,157.64 and 88,243.66 is: 121,771.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,670.38 : 205,157.64 = 88,243.66 : x
  2. Step 2: Convert to fraction form
    148,670.38/205,157.64 = 88,243.66/x
  3. Step 3: Cross multiply
    148,670.38x = 205,157.64 × 88,243.66
  4. Step 4: Simplify right side
    148,670.38x = 18,103,861,030.56
  5. Step 5: Solve for x
    x = 18,103,861,030.56/148,670.38
  6. Step 6: Final answer
    x = 121,771.81

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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.