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Finding the Fourth Proportional to 144,484.62, 199,389.51 and 80,822.40

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Solution

The fourth proportional to 144,484.62, 199,389.51 and 80,822.40 is: 111,535.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,484.62 : 199,389.51 = 80,822.40 : x
  2. Step 2: Convert to fraction form
    144,484.62/199,389.51 = 80,822.40/x
  3. Step 3: Cross multiply
    144,484.62x = 199,389.51 × 80,822.40
  4. Step 4: Simplify right side
    144,484.62x = 16,115,138,733.02
  5. Step 5: Solve for x
    x = 16,115,138,733.02/144,484.62
  6. Step 6: Final answer
    x = 111,535.32

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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.