Home / 111,541.12-154,229.47-109,738.36

Finding the Fourth Proportional to 111,541.12, 154,229.47 and 109,738.36

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Solution

The fourth proportional to 111,541.12, 154,229.47 and 109,738.36 is: 151,736.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,541.12 : 154,229.47 = 109,738.36 : x
  2. Step 2: Convert to fraction form
    111,541.12/154,229.47 = 109,738.36/x
  3. Step 3: Cross multiply
    111,541.12x = 154,229.47 × 109,738.36
  4. Step 4: Simplify right side
    111,541.12x = 16,924,889,019.91
  5. Step 5: Solve for x
    x = 16,924,889,019.91/111,541.12
  6. Step 6: Final answer
    x = 151,736.77

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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.