Home / 131,558.94-181,550.97-71,129.16

Finding the Fourth Proportional to 131,558.94, 181,550.97 and 71,129.16

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Solution

The fourth proportional to 131,558.94, 181,550.97 and 71,129.16 is: 98,158.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,558.94 : 181,550.97 = 71,129.16 : x
  2. Step 2: Convert to fraction form
    131,558.94/181,550.97 = 71,129.16/x
  3. Step 3: Cross multiply
    131,558.94x = 181,550.97 × 71,129.16
  4. Step 4: Simplify right side
    131,558.94x = 12,913,567,993.29
  5. Step 5: Solve for x
    x = 12,913,567,993.29/131,558.94
  6. Step 6: Final answer
    x = 98,158.04

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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.