Home / 181,686.62-272,705.70-131,137.76

Finding the Fourth Proportional to 181,686.62, 272,705.70 and 131,137.76

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Solution

The fourth proportional to 181,686.62, 272,705.70 and 131,137.76 is: 196,833.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,686.62 : 272,705.70 = 131,137.76 : x
  2. Step 2: Convert to fraction form
    181,686.62/272,705.70 = 131,137.76/x
  3. Step 3: Cross multiply
    181,686.62x = 272,705.70 × 131,137.76
  4. Step 4: Simplify right side
    181,686.62x = 35,762,014,637.23
  5. Step 5: Solve for x
    x = 35,762,014,637.23/181,686.62
  6. Step 6: Final answer
    x = 196,833.51

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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.