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Finding the Fourth Proportional to 144,170.62, 216,302.20 and 69,296.21

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Solution

The fourth proportional to 144,170.62, 216,302.20 and 69,296.21 is: 103,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,170.62 : 216,302.20 = 69,296.21 : x
  2. Step 2: Convert to fraction form
    144,170.62/216,302.20 = 69,296.21/x
  3. Step 3: Cross multiply
    144,170.62x = 216,302.20 × 69,296.21
  4. Step 4: Simplify right side
    144,170.62x = 14,988,922,231.04
  5. Step 5: Solve for x
    x = 14,988,922,231.04/144,170.62
  6. Step 6: Final answer
    x = 103,966.55

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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.