Home / 131,529.64-181,468.06-80,489.10

Finding the Fourth Proportional to 131,529.64, 181,468.06 and 80,489.10

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Solution

The fourth proportional to 131,529.64, 181,468.06 and 80,489.10 is: 111,048.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,529.64 : 181,468.06 = 80,489.10 : x
  2. Step 2: Convert to fraction form
    131,529.64/181,468.06 = 80,489.10/x
  3. Step 3: Cross multiply
    131,529.64x = 181,468.06 × 80,489.10
  4. Step 4: Simplify right side
    131,529.64x = 14,606,200,828.15
  5. Step 5: Solve for x
    x = 14,606,200,828.15/131,529.64
  6. Step 6: Final answer
    x = 111,048.74

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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.