Home / 203,538.05-280,891.41-112,887.91

Finding the Fourth Proportional to 203,538.05, 280,891.41 and 112,887.91

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Solution

The fourth proportional to 203,538.05, 280,891.41 and 112,887.91 is: 155,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,538.05 : 280,891.41 = 112,887.91 : x
  2. Step 2: Convert to fraction form
    203,538.05/280,891.41 = 112,887.91/x
  3. Step 3: Cross multiply
    203,538.05x = 280,891.41 × 112,887.91
  4. Step 4: Simplify right side
    203,538.05x = 31,709,242,807.40
  5. Step 5: Solve for x
    x = 31,709,242,807.40/203,538.05
  6. Step 6: Final answer
    x = 155,790.25

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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.