Home / 192,681.20-288,906.60-99,369.20

Finding the Fourth Proportional to 192,681.20, 288,906.60 and 99,369.20

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Solution

The fourth proportional to 192,681.20, 288,906.60 and 99,369.20 is: 148,994.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,681.20 : 288,906.60 = 99,369.20 : x
  2. Step 2: Convert to fraction form
    192,681.20/288,906.60 = 99,369.20/x
  3. Step 3: Cross multiply
    192,681.20x = 288,906.60 × 99,369.20
  4. Step 4: Simplify right side
    192,681.20x = 28,708,417,716.72
  5. Step 5: Solve for x
    x = 28,708,417,716.72/192,681.20
  6. Step 6: Final answer
    x = 148,994.39

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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.