Home / 115,274.90-172,912.35-70,757.30

Finding the Fourth Proportional to 115,274.90, 172,912.35 and 70,757.30

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Solution

The fourth proportional to 115,274.90, 172,912.35 and 70,757.30 is: 106,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,274.90 : 172,912.35 = 70,757.30 : x
  2. Step 2: Convert to fraction form
    115,274.90/172,912.35 = 70,757.30/x
  3. Step 3: Cross multiply
    115,274.90x = 172,912.35 × 70,757.30
  4. Step 4: Simplify right side
    115,274.90x = 12,234,811,022.66
  5. Step 5: Solve for x
    x = 12,234,811,022.66/115,274.90
  6. Step 6: Final answer
    x = 106,135.95

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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.