Home / 192,515.10-288,772.65-145,859.10

Finding the Fourth Proportional to 192,515.10, 288,772.65 and 145,859.10

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Solution

The fourth proportional to 192,515.10, 288,772.65 and 145,859.10 is: 218,788.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,515.10 : 288,772.65 = 145,859.10 : x
  2. Step 2: Convert to fraction form
    192,515.10/288,772.65 = 145,859.10/x
  3. Step 3: Cross multiply
    192,515.10x = 288,772.65 × 145,859.10
  4. Step 4: Simplify right side
    192,515.10x = 42,120,118,833.62
  5. Step 5: Solve for x
    x = 42,120,118,833.62/192,515.10
  6. Step 6: Final answer
    x = 218,788.65

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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.