Home / 131,056.78-180,859.62-74,468.56

Finding the Fourth Proportional to 131,056.78, 180,859.62 and 74,468.56

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Solution

The fourth proportional to 131,056.78, 180,859.62 and 74,468.56 is: 102,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,056.78 : 180,859.62 = 74,468.56 : x
  2. Step 2: Convert to fraction form
    131,056.78/180,859.62 = 74,468.56/x
  3. Step 3: Cross multiply
    131,056.78x = 180,859.62 × 74,468.56
  4. Step 4: Simplify right side
    131,056.78x = 13,468,355,463.55
  5. Step 5: Solve for x
    x = 13,468,355,463.55/131,056.78
  6. Step 6: Final answer
    x = 102,767.33

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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.