Home / 209,120.04-288,586.11-113,626.86

Finding the Fourth Proportional to 209,120.04, 288,586.11 and 113,626.86

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Solution

The fourth proportional to 209,120.04, 288,586.11 and 113,626.86 is: 156,805.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,120.04 : 288,586.11 = 113,626.86 : x
  2. Step 2: Convert to fraction form
    209,120.04/288,586.11 = 113,626.86/x
  3. Step 3: Cross multiply
    209,120.04x = 288,586.11 × 113,626.86
  4. Step 4: Simplify right side
    209,120.04x = 32,791,133,518.91
  5. Step 5: Solve for x
    x = 32,791,133,518.91/209,120.04
  6. Step 6: Final answer
    x = 156,805.31

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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.