Home / 148,213.52-204,534.66-81,145.52

Finding the Fourth Proportional to 148,213.52, 204,534.66 and 81,145.52

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Solution

The fourth proportional to 148,213.52, 204,534.66 and 81,145.52 is: 111,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,213.52 : 204,534.66 = 81,145.52 : x
  2. Step 2: Convert to fraction form
    148,213.52/204,534.66 = 81,145.52/x
  3. Step 3: Cross multiply
    148,213.52x = 204,534.66 × 81,145.52
  4. Step 4: Simplify right side
    148,213.52x = 16,597,071,343.72
  5. Step 5: Solve for x
    x = 16,597,071,343.72/148,213.52
  6. Step 6: Final answer
    x = 111,980.82

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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.