Home / 111,782.20-154,153.96-73,474.08

Finding the Fourth Proportional to 111,782.20, 154,153.96 and 73,474.08

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Solution

The fourth proportional to 111,782.20, 154,153.96 and 73,474.08 is: 101,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,782.20 : 154,153.96 = 73,474.08 : x
  2. Step 2: Convert to fraction form
    111,782.20/154,153.96 = 73,474.08/x
  3. Step 3: Cross multiply
    111,782.20x = 154,153.96 × 73,474.08
  4. Step 4: Simplify right side
    111,782.20x = 11,326,320,389.36
  5. Step 5: Solve for x
    x = 11,326,320,389.36/111,782.20
  6. Step 6: Final answer
    x = 101,324.90

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1.5x scale

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.