Home / 144,835.19-199,861.56-81,160.68

Finding the Fourth Proportional to 144,835.19, 199,861.56 and 81,160.68

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Solution

The fourth proportional to 144,835.19, 199,861.56 and 81,160.68 is: 111,995.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,835.19 : 199,861.56 = 81,160.68 : x
  2. Step 2: Convert to fraction form
    144,835.19/199,861.56 = 81,160.68/x
  3. Step 3: Cross multiply
    144,835.19x = 199,861.56 × 81,160.68
  4. Step 4: Simplify right side
    144,835.19x = 16,220,900,115.46
  5. Step 5: Solve for x
    x = 16,220,900,115.46/144,835.19
  6. Step 6: Final answer
    x = 111,995.58

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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.