Home / 209,135.58-288,624.15-119,717.34

Finding the Fourth Proportional to 209,135.58, 288,624.15 and 119,717.34

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Solution

The fourth proportional to 209,135.58, 288,624.15 and 119,717.34 is: 165,219.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,135.58 : 288,624.15 = 119,717.34 : x
  2. Step 2: Convert to fraction form
    209,135.58/288,624.15 = 119,717.34/x
  3. Step 3: Cross multiply
    209,135.58x = 288,624.15 × 119,717.34
  4. Step 4: Simplify right side
    209,135.58x = 34,553,315,497.76
  5. Step 5: Solve for x
    x = 34,553,315,497.76/209,135.58
  6. Step 6: Final answer
    x = 165,219.69

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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.