Home / 154,743.36-231,964.38-79,947.96

Finding the Fourth Proportional to 154,743.36, 231,964.38 and 79,947.96

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Solution

The fourth proportional to 154,743.36, 231,964.38 and 79,947.96 is: 119,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,743.36 : 231,964.38 = 79,947.96 : x
  2. Step 2: Convert to fraction form
    154,743.36/231,964.38 = 79,947.96/x
  3. Step 3: Cross multiply
    154,743.36x = 231,964.38 × 79,947.96
  4. Step 4: Simplify right side
    154,743.36x = 18,545,078,973.66
  5. Step 5: Solve for x
    x = 18,545,078,973.66/154,743.36
  6. Step 6: Final answer
    x = 119,844.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.