Home / 154,129.37-231,192.97-79,270.38

Finding the Fourth Proportional to 154,129.37, 231,192.97 and 79,270.38

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Solution

The fourth proportional to 154,129.37, 231,192.97 and 79,270.38 is: 118,905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,129.37 : 231,192.97 = 79,270.38 : x
  2. Step 2: Convert to fraction form
    154,129.37/231,192.97 = 79,270.38/x
  3. Step 3: Cross multiply
    154,129.37x = 231,192.97 × 79,270.38
  4. Step 4: Simplify right side
    154,129.37x = 18,326,754,387.05
  5. Step 5: Solve for x
    x = 18,326,754,387.05/154,129.37
  6. Step 6: Final answer
    x = 118,905.01

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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.