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Finding the Fourth Proportional to 144,679.80, 199,524.90 and 99,277.68

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Solution

The fourth proportional to 144,679.80, 199,524.90 and 99,277.68 is: 136,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,679.80 : 199,524.90 = 99,277.68 : x
  2. Step 2: Convert to fraction form
    144,679.80/199,524.90 = 99,277.68/x
  3. Step 3: Cross multiply
    144,679.80x = 199,524.90 × 99,277.68
  4. Step 4: Simplify right side
    144,679.80x = 19,808,369,174.23
  5. Step 5: Solve for x
    x = 19,808,369,174.23/144,679.80
  6. Step 6: Final answer
    x = 136,911.78

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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.