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Finding the Fourth Proportional to 144,472.70, 216,709.05 and 92,114.30

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Solution

The fourth proportional to 144,472.70, 216,709.05 and 92,114.30 is: 138,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,472.70 : 216,709.05 = 92,114.30 : x
  2. Step 2: Convert to fraction form
    144,472.70/216,709.05 = 92,114.30/x
  3. Step 3: Cross multiply
    144,472.70x = 216,709.05 × 92,114.30
  4. Step 4: Simplify right side
    144,472.70x = 19,962,002,444.42
  5. Step 5: Solve for x
    x = 19,962,002,444.42/144,472.70
  6. Step 6: Final answer
    x = 138,171.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.