Home / 131,314.77-181,231.63-73,965.35

Finding the Fourth Proportional to 131,314.77, 181,231.63 and 73,965.35

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Solution

The fourth proportional to 131,314.77, 181,231.63 and 73,965.35 is: 102,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,314.77 : 181,231.63 = 73,965.35 : x
  2. Step 2: Convert to fraction form
    131,314.77/181,231.63 = 73,965.35/x
  3. Step 3: Cross multiply
    131,314.77x = 181,231.63 × 73,965.35
  4. Step 4: Simplify right side
    131,314.77x = 13,404,861,212.19
  5. Step 5: Solve for x
    x = 13,404,861,212.19/131,314.77
  6. Step 6: Final answer
    x = 102,081.90

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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.