Home / 131,727.15-181,783.26-71,297.78

Finding the Fourth Proportional to 131,727.15, 181,783.26 and 71,297.78

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Solution

The fourth proportional to 131,727.15, 181,783.26 and 71,297.78 is: 98,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,727.15 : 181,783.26 = 71,297.78 : x
  2. Step 2: Convert to fraction form
    131,727.15/181,783.26 = 71,297.78/x
  3. Step 3: Cross multiply
    131,727.15x = 181,783.26 × 71,297.78
  4. Step 4: Simplify right side
    131,727.15x = 12,960,741,970.25
  5. Step 5: Solve for x
    x = 12,960,741,970.25/131,727.15
  6. Step 6: Final answer
    x = 98,390.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.