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Finding the Fourth Proportional to 144,689.70, 199,667.16 and 80,156.28

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Solution

The fourth proportional to 144,689.70, 199,667.16 and 80,156.28 is: 110,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,689.70 : 199,667.16 = 80,156.28 : x
  2. Step 2: Convert to fraction form
    144,689.70/199,667.16 = 80,156.28/x
  3. Step 3: Cross multiply
    144,689.70x = 199,667.16 × 80,156.28
  4. Step 4: Simplify right side
    144,689.70x = 16,004,576,783.76
  5. Step 5: Solve for x
    x = 16,004,576,783.76/144,689.70
  6. Step 6: Final answer
    x = 110,613.10

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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.