Home / 144,971.20-200,135.37-112,633.30

Finding the Fourth Proportional to 144,971.20, 200,135.37 and 112,633.30

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Solution

The fourth proportional to 144,971.20, 200,135.37 and 112,633.30 is: 155,492.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,971.20 : 200,135.37 = 112,633.30 : x
  2. Step 2: Convert to fraction form
    144,971.20/200,135.37 = 112,633.30/x
  3. Step 3: Cross multiply
    144,971.20x = 200,135.37 × 112,633.30
  4. Step 4: Simplify right side
    144,971.20x = 22,541,907,169.82
  5. Step 5: Solve for x
    x = 22,541,907,169.82/144,971.20
  6. Step 6: Final answer
    x = 155,492.31

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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.