Home / 144,617.40-199,566.18-84,189.78

Finding the Fourth Proportional to 144,617.40, 199,566.18 and 84,189.78

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Solution

The fourth proportional to 144,617.40, 199,566.18 and 84,189.78 is: 116,178.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,617.40 : 199,566.18 = 84,189.78 : x
  2. Step 2: Convert to fraction form
    144,617.40/199,566.18 = 84,189.78/x
  3. Step 3: Cross multiply
    144,617.40x = 199,566.18 × 84,189.78
  4. Step 4: Simplify right side
    144,617.40x = 16,801,432,789.64
  5. Step 5: Solve for x
    x = 16,801,432,789.64/144,617.40
  6. Step 6: Final answer
    x = 116,178.50

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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.