Home / 145,505.57-200,795.63-81,843.35

Finding the Fourth Proportional to 145,505.57, 200,795.63 and 81,843.35

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Solution

The fourth proportional to 145,505.57, 200,795.63 and 81,843.35 is: 112,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,505.57 : 200,795.63 = 81,843.35 : x
  2. Step 2: Convert to fraction form
    145,505.57/200,795.63 = 81,843.35/x
  3. Step 3: Cross multiply
    145,505.57x = 200,795.63 × 81,843.35
  4. Step 4: Simplify right side
    145,505.57x = 16,433,785,611.37
  5. Step 5: Solve for x
    x = 16,433,785,611.37/145,505.57
  6. Step 6: Final answer
    x = 112,942.66

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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.