Home / 154,121.53-231,182.30-43,313.53

Finding the Fourth Proportional to 154,121.53, 231,182.30 and 43,313.53

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Solution

The fourth proportional to 154,121.53, 231,182.30 and 43,313.53 is: 64,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,121.53 : 231,182.30 = 43,313.53 : x
  2. Step 2: Convert to fraction form
    154,121.53/231,182.30 = 43,313.53/x
  3. Step 3: Cross multiply
    154,121.53x = 231,182.30 × 43,313.53
  4. Step 4: Simplify right side
    154,121.53x = 10,013,321,721.36
  5. Step 5: Solve for x
    x = 10,013,321,721.36/154,121.53
  6. Step 6: Final answer
    x = 64,970.30

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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.