Home / 130,553.69-180,163.78-73,965.06

Finding the Fourth Proportional to 130,553.69, 180,163.78 and 73,965.06

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Solution

The fourth proportional to 130,553.69, 180,163.78 and 73,965.06 is: 102,071.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,553.69 : 180,163.78 = 73,965.06 : x
  2. Step 2: Convert to fraction form
    130,553.69/180,163.78 = 73,965.06/x
  3. Step 3: Cross multiply
    130,553.69x = 180,163.78 × 73,965.06
  4. Step 4: Simplify right side
    130,553.69x = 13,325,824,612.61
  5. Step 5: Solve for x
    x = 13,325,824,612.61/130,553.69
  6. Step 6: Final answer
    x = 102,071.61

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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.