Home / 131,619.96-181,635.58-74,271.44

Finding the Fourth Proportional to 131,619.96, 181,635.58 and 74,271.44

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Solution

The fourth proportional to 131,619.96, 181,635.58 and 74,271.44 is: 102,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,619.96 : 181,635.58 = 74,271.44 : x
  2. Step 2: Convert to fraction form
    131,619.96/181,635.58 = 74,271.44/x
  3. Step 3: Cross multiply
    131,619.96x = 181,635.58 × 74,271.44
  4. Step 4: Simplify right side
    131,619.96x = 13,490,336,081.84
  5. Step 5: Solve for x
    x = 13,490,336,081.84/131,619.96
  6. Step 6: Final answer
    x = 102,494.61

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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.