Home / 131,099.82-180,917.79-74,509.74

Finding the Fourth Proportional to 131,099.82, 180,917.79 and 74,509.74

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Solution

The fourth proportional to 131,099.82, 180,917.79 and 74,509.74 is: 102,823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,099.82 : 180,917.79 = 74,509.74 : x
  2. Step 2: Convert to fraction form
    131,099.82/180,917.79 = 74,509.74/x
  3. Step 3: Cross multiply
    131,099.82x = 180,917.79 × 74,509.74
  4. Step 4: Simplify right side
    131,099.82x = 13,480,137,494.27
  5. Step 5: Solve for x
    x = 13,480,137,494.27/131,099.82
  6. Step 6: Final answer
    x = 102,823.46

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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.