Home / 181,536.80-272,305.20-131,381.60

Finding the Fourth Proportional to 181,536.80, 272,305.20 and 131,381.60

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Solution

The fourth proportional to 181,536.80, 272,305.20 and 131,381.60 is: 197,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,536.80 : 272,305.20 = 131,381.60 : x
  2. Step 2: Convert to fraction form
    181,536.80/272,305.20 = 131,381.60/x
  3. Step 3: Cross multiply
    181,536.80x = 272,305.20 × 131,381.60
  4. Step 4: Simplify right side
    181,536.80x = 35,775,892,864.32
  5. Step 5: Solve for x
    x = 35,775,892,864.32/181,536.80
  6. Step 6: Final answer
    x = 197,072.40

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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.