Home / 136,336.05-188,095.05-78,944.04

Finding the Fourth Proportional to 136,336.05, 188,095.05 and 78,944.04

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Solution

The fourth proportional to 136,336.05, 188,095.05 and 78,944.04 is: 108,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,336.05 : 188,095.05 = 78,944.04 : x
  2. Step 2: Convert to fraction form
    136,336.05/188,095.05 = 78,944.04/x
  3. Step 3: Cross multiply
    136,336.05x = 188,095.05 × 78,944.04
  4. Step 4: Simplify right side
    136,336.05x = 14,848,983,151.00
  5. Step 5: Solve for x
    x = 14,848,983,151.00/136,336.05
  6. Step 6: Final answer
    x = 108,914.58

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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.