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Finding the Fourth Proportional to 144,269.84, 216,452.84 and 90,900.21

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Solution

The fourth proportional to 144,269.84, 216,452.84 and 90,900.21 is: 136,380.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,269.84 : 216,452.84 = 90,900.21 : x
  2. Step 2: Convert to fraction form
    144,269.84/216,452.84 = 90,900.21/x
  3. Step 3: Cross multiply
    144,269.84x = 216,452.84 × 90,900.21
  4. Step 4: Simplify right side
    144,269.84x = 19,675,608,156.60
  5. Step 5: Solve for x
    x = 19,675,608,156.60/144,269.84
  6. Step 6: Final answer
    x = 136,380.61

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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.