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Finding the Fourth Proportional to 144,855.50, 199,901.03 and 80,329.28

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Solution

The fourth proportional to 144,855.50, 199,901.03 and 80,329.28 is: 110,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,855.50 : 199,901.03 = 80,329.28 : x
  2. Step 2: Convert to fraction form
    144,855.50/199,901.03 = 80,329.28/x
  3. Step 3: Cross multiply
    144,855.50x = 199,901.03 × 80,329.28
  4. Step 4: Simplify right side
    144,855.50x = 16,057,905,411.82
  5. Step 5: Solve for x
    x = 16,057,905,411.82/144,855.50
  6. Step 6: Final answer
    x = 110,854.65

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1.5x scale

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.