Home / 131,727.63-181,784.61-71,299.07

Finding the Fourth Proportional to 131,727.63, 181,784.61 and 71,299.07

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Solution

The fourth proportional to 131,727.63, 181,784.61 and 71,299.07 is: 98,392.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,727.63 : 181,784.61 = 71,299.07 : x
  2. Step 2: Convert to fraction form
    131,727.63/181,784.61 = 71,299.07/x
  3. Step 3: Cross multiply
    131,727.63x = 181,784.61 × 71,299.07
  4. Step 4: Simplify right side
    131,727.63x = 12,961,072,724.39
  5. Step 5: Solve for x
    x = 12,961,072,724.39/131,727.63
  6. Step 6: Final answer
    x = 98,392.97

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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.