Home / 209,216.66-288,717.82-118,589.76

Finding the Fourth Proportional to 209,216.66, 288,717.82 and 118,589.76

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Solution

The fourth proportional to 209,216.66, 288,717.82 and 118,589.76 is: 163,653.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,216.66 : 288,717.82 = 118,589.76 : x
  2. Step 2: Convert to fraction form
    209,216.66/288,717.82 = 118,589.76/x
  3. Step 3: Cross multiply
    209,216.66x = 288,717.82 × 118,589.76
  4. Step 4: Simplify right side
    209,216.66x = 34,238,976,685.05
  5. Step 5: Solve for x
    x = 34,238,976,685.05/209,216.66
  6. Step 6: Final answer
    x = 163,653.21

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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.