Home / 144,458.11-199,362.63-80,816.41

Finding the Fourth Proportional to 144,458.11, 199,362.63 and 80,816.41

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Solution

The fourth proportional to 144,458.11, 199,362.63 and 80,816.41 is: 111,532.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,458.11 : 199,362.63 = 80,816.41 : x
  2. Step 2: Convert to fraction form
    144,458.11/199,362.63 = 80,816.41/x
  3. Step 3: Cross multiply
    144,458.11x = 199,362.63 × 80,816.41
  4. Step 4: Simplify right side
    144,458.11x = 16,111,772,044.76
  5. Step 5: Solve for x
    x = 16,111,772,044.76/144,458.11
  6. Step 6: Final answer
    x = 111,532.49

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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.