Home / 154,216.20-231,324.30-69,943.80

Finding the Fourth Proportional to 154,216.20, 231,324.30 and 69,943.80

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Solution

The fourth proportional to 154,216.20, 231,324.30 and 69,943.80 is: 104,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,216.20 : 231,324.30 = 69,943.80 : x
  2. Step 2: Convert to fraction form
    154,216.20/231,324.30 = 69,943.80/x
  3. Step 3: Cross multiply
    154,216.20x = 231,324.30 × 69,943.80
  4. Step 4: Simplify right side
    154,216.20x = 16,179,700,574.34
  5. Step 5: Solve for x
    x = 16,179,700,574.34/154,216.20
  6. Step 6: Final answer
    x = 104,915.70

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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.