Home / 144,461.12-199,366.76-80,819.40

Finding the Fourth Proportional to 144,461.12, 199,366.76 and 80,819.40

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Solution

The fourth proportional to 144,461.12, 199,366.76 and 80,819.40 is: 111,536.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,461.12 : 199,366.76 = 80,819.40 : x
  2. Step 2: Convert to fraction form
    144,461.12/199,366.76 = 80,819.40/x
  3. Step 3: Cross multiply
    144,461.12x = 199,366.76 × 80,819.40
  4. Step 4: Simplify right side
    144,461.12x = 16,112,701,923.14
  5. Step 5: Solve for x
    x = 16,112,701,923.14/144,461.12
  6. Step 6: Final answer
    x = 111,536.60

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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.