Home / 209,017.87-288,439.90-113,522.51

Finding the Fourth Proportional to 209,017.87, 288,439.90 and 113,522.51

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Solution

The fourth proportional to 209,017.87, 288,439.90 and 113,522.51 is: 156,658.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,017.87 : 288,439.90 = 113,522.51 : x
  2. Step 2: Convert to fraction form
    209,017.87/288,439.90 = 113,522.51/x
  3. Step 3: Cross multiply
    209,017.87x = 288,439.90 × 113,522.51
  4. Step 4: Simplify right side
    209,017.87x = 32,744,421,869.44
  5. Step 5: Solve for x
    x = 32,744,421,869.44/209,017.87
  6. Step 6: Final answer
    x = 156,658.48

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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.